Microsoft Word - 7 393 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 Synthesis of Tetra Dentate N2O2 and their Complexes With Cu[II), Zn[II), Cd[II) and Hg[II) Ions. Maysoon. T. Tawfiq Ahlaam. J. Zaier Dept. of Chemistry/ College of Education for Pure Science/ (Ibn Al-Haitham)/ University of Baghdad. Muna . I .Khalaf Dept . of Chemistry / College of Science / University of Baghdad Received in: 19 March 2014,Accepted in:29 September 2014 Abstract A Schiff base ligand 1,2-[Bis-(1-phenyl-2-hydroxy-2-phenyl)-amino] benzene [H2L] and its complexes with (Cu(II), Zn(II), Cd(II) and Hg(II)) ions are reported. The ligand was prepared by condensation reaction of ortho-phenylenediamine in methanol under reflux with benzoin to give the mentioned ligand. Then the complexes were synthesized by adding corresponding metal salts to the solution of the ligand in methanol under reflux with 1:1 metal to ligand ratio. On the basis of molar conductance I.R., U.V-Vis, HPLC, chloride content and atomic absorption the complexes may be formulated as K2[M(L)Cl2][MII = Cu, Zn, Cd and Hg]. The data of these measurements suggest a tetrahedral geometry to complexes Cu, Zn, Cd and Hg. Key words: Synthesis, Schiff bases, Tetra dentate ligand. 394 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 Introduction Schiff bases compounds are used as ligands and the bidented ligands have been among those, they are commonly used in preparing metal complexes. These ligands are described according to their donor as N,N donor and N,O donor Schiff bases[1,2]. The Schiff base complexes are used in catalytic reaction[3] and as models for biological system[4,5]. Many Schiff base ligands with a variety of donor sets, such as (N,O), (N,S) and (N,N) and (N,N) and their transition metal complexes were reported[6,7]. Also Schiff base ligands are well known to have pronounced biological activities[8]. The imino group in Schiff bases can form complexes with transition metal as CoII, CuII and CdII[9]. In 2003 chafa and Co-worker[10] prepared a Schiff kind (N2O2) [4,4-Bis(salicylidene- imino)di-phenyl ethane (saldiphz) and its transition metal complexes with CoII, CuII and CdII]. In this paper the synthesis and characterization of new ligand 1,2-[Bis-(1-phenl-2-hydroxy-2- phenyl)-amino] benzene [H2L] and its complexes with CuII, ZnII, CdII and HgII were reported. Literature survey shows that Schiff bases complexes have wide range of applications on the industrial scale, such as dyes and pigments [11]. Another area of application of these Schiff bases is analytical chemistry where some of these compounds are used as ligand in complexometry topic [12]. For a long time tetradentate Schiff base complexes have attracted many interests in the field of coordination chemistry [17-18]. Also tetradentate Schiff bases with a N2O2 donor atom set are well known to coordinate with various metal ions [17-18]. Schiff base of 4- aminoantipyrine and its complexes have a variety of applications in biological, clinical, analytical and pharmacological areas [19-21]. Experimental Reagents were purchased from Fluka and Rediel-Dehenge chemical Co.IR. spectra were recorded as (KBr) discs using a Shimadzu 8400 FT-IR Spectrophotometer in the range (4000-450) cm-1. Electronic spectra of the prepared compounds were measured in the region (200-900) nm for 10-3M solution in (EtOH) at 25C° using a Shimadzu 160 spectrophotometer with 1.000 ± 0.001 cm matched quartz cell. Metal contents of the complexes were determined by atomic absorption (A.A.) technique using a Shimadzu A.A. 680G atomic absorption spectrophotometer. The chloride contents for complexes were determined by potentiometric titration method on (686-titro processor-665), Dosinat metrom Swiss. Electrical conductivity measurements of the complexes were recorded at 25C° for 10-3M solutions in (DMSO) as a solvent using a PW952 digital conductivity meter. Synthesis of the ligand [H2L] A solution of (O-phenylene diamine) (2.16g ,0.02 mmol) in methanol (15mL) was added slowly to a mixture of (benzoin) (8.84g,0.04 mmol) dissolving in methanol (20mL) with (2-4) drops of glacial acetic acid. The mixture was refluxed for (5 hrs.), and allowed to dry at room temperature for (24 hrs.). A green solid was obtained. Recrystillized from ethanol. Yield (78%), (3.3g), m.p. (240 0C dec.). Synthesis of ligand [H2L] Complexes. Synthesis of [Cu(HL)]Cl (1) A solution of (H2L) (0.992g , 0.002 mmol) in (10mL) methanol dissolved in a solution of KOH (0.224 g , 0.04 mmol) (5mL) ethanol was placed in (100mL) round bottomed flask. A solution of CuCl2.2H2O (0.34g , 0.002 mmol) in ethanol (5mL) was added drop-wise with stirring. The mixture was refluxed at (78)C° in water bath for (5 hrs.) with stirring. Then the mixture was allowed to cool at room temperature, filtered, washed with methanol. A deep green solid was formed. Recrystillized from ethanol. Yield (57%), (0.38g) , (290 0C dec.) . 395 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 Synthesis of [Zn(HL)]Cl(2), [Cd(HL)]Cl(3) and [Hg(HL)]Cl(4) Complexes The method used to prepare these complexes was similar to that mentioned in the preparation of [Cu(HL)]Cl complex. Table(1) states weight to starting materials, % yield and some physical properties of the prepared complexes. Results and Discussion The new ligand [H2L] was prepared in two steps according to the general method as shown in Schem-1. The IR spectrum for [H2L] (Fig.2) display a broad band at 3414 cm-1 which is due to the ν(O-H) stretching of the phenolic hydroxyl group [22]. The band at 1678 cm-1 is attributed to ν(C=N) stretching frequency for the imino oxime groups vibration respectively [23-25]. The sharp bands at 1261 and 1207 cm-1 are attributed to ν(C-N) and ν(C- O) stretching vibration respectively. U.V-Vis spectrum of the ligand (Fig.3) showed high intense absorption peak at (312) nm, (3401.3)cm-1 (Σmax.=2106 molar-1.cm-1) which assigned to overlap of (π→π*) and (n→π*) electronic transition[26]. Complexes The synthesis of the complexes was carried out by the reaction of [H2L] with [MCl2.×H2O][where M = CuII, ZnII CdII and HgII] in methanol under reflux (Scheme- 2). These complexes are stable in solution and electrolyte system (1:1) in DMSO (table-3). The analytical and physical data (table-1) and spectral data (table-2) are compatible with the suggested structures (Fig. 1). The IR spectra data of complexes are presented in (table- 2). The IR spectra of the complexes show bands at 3323, 3394, 3341 and 3379 cm-1 which were attributed to ν(OH…..O) stretching vibration of the hydrogen bonding. This band is shifted to lower frequency in comparsion with that of the free ligand at 3414 cm-1 [27-28]. The strong band in free ligand [H2L] at 1678 cm-1 for the imine group (C=N) was shifted to lower frequency at 1668, 1632, 1662 and 1670 cm-1 for the complexes (1), (2), (3) and (4) respectively and this due to coordination with metal ions[23-25]. The bands at 1211, 1180, 1215 and 1208 cm-1 were assigned to ν(C-O) stretching vibration in the IR spectra of complexes (1), (2), (3) and (4). The bands at 642, 651, 644 and 686 cm-1 were assigned to ν(M-N) for complexes (1), (2), (3) and (4) respectively indicating that the imine nitrogen is involved in coordination with metal ions[30-31]. The bands at 422, 424, 416 and 562 cm-1 were assigned to ν(M-O) for compounds(1), (2), (3) and (4), indicating that the phenolic oxygen of the ligand is involved in coordination with metal ions[31-33]. Figs. (2-1), (2-2), (2-3) an d (2-4) represent the (IR) spectra of [Cu(HL)]Cl, [Zn(HL)]Cl, [Cd(HL)]Cl and [Hg(HL)]Cl. The (U.V-Vis) spectra for all complexes as shown in Figs. (3-1), (3-2), (3-3) and (3-4). The absorption data for complexes are given in (table- 3). In general, the spectra showed two intense peaks in the U.V region at (301,330), (314,323), (302,335) and (301,334) nm for complexes (1), (2), (3) and (4). These peaks were assigned to ligand field and charge transfer transition respectively[34]. Electronic spectrum for complex (1) exhibited peak at 699 nm which can be attributed to (d-d) transition type (2B1g→2B2g). A position of this peak is a good agreement with reported for CuII distorted tetrahedral geometry[35]. The absence of (d-d) transitions in the Electronic spectra of complexes (2), (3) and (4) are arrangement with (d10) configuration [36]. The molar conductance values determined in (DMSO) solution (10-3M) found in the range (66-78) Am (Ω1.cm2.Mole-1) (table 3) which indicated that the complexes are electrolyte (1:1) ratio[37]. The micro analysis of the (A.A.) and chloride content results for the complexes [Cu(HL)]Cl, [Zn(HL)]Cl, [Cd(HL)]Cl and [Hg(HL)]Cl, (table-1) are in a good agreement with the calculated values. 396 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 References 1. Casellato, U., Gerriero, P., Tamburini, S., and Vigato, P.A. ; (1986), " Synthesis and characterization of new ligand Schiff base-2-[2-carboxy-ehyldeneamino)-sodium-1propaneat and study of extraction it with zinc ion"., Inorg. Chem., Acta, 119,75 2. Goodiwn, J.A., Wilson, L.J., Stanbury, D.M., and Scott, R.A.; (1989), " Direct Evidence for a Geometrically Constrained Entatic State Effect on Copper(II/I) Electron-Transfer Kinetics As Manifested in Metastable Intermediates"., Inorg. Chem., 28,42. 3.Hamiltan, D.E; Drago, R.S., and Zombeck, A. (1987), " Formation and stability of some transition metal complexes with a new tetradentate Schiff base ligand"., J.Am. Chem. Soc. 159,374. 4. Chen, D, and Martel, A.E; (1987), " Nitrogen-hydrogen activation. 1. Oxidative addition of ammonia to iridium(I). Isolation, structural characterization and reactivity of amidoiridium hydrides"., Inorg. Chem., 26,7,1026-1030. 5. Costamagnal, J; Vargas, J.; Latorre, R.; Alvarado A. and mena, G., (1992)," A dinuclear zinc complex with (E)‐4‐dimethylamino‐N′‐(2‐hydroxybenzylidene)benzohydrazide"., Coord. Chem., Rev., 119,67. 6. Caseuato ,V.; Gerriero P.; Tampurini S. and Vigato J.P.A; (1992), " Synthesis and Characterization of Novel Macrocyclic ligand and its complexes with (Co(II) ,,Ni(II), ,Cu(II), ,Zn(II), and Cd(II))ions"., Inorg., Chem. Acta., 119,75. 7. Freybry, D.P.; Mockler G.M. and E. sinn., (1976)," TRANSITION METAL COMPLEXES OF SCHIFF BASES WITH AZIDE AND THIOCYANATE AS COLlGANDS: SPECTRAL AND STRUCTURAL INVESTIGATIONS"., J. Chem. Soc. Daltontrans, 5,445. 8. Raoand, S.,and Mittra, S.A.,(1978),"Transition metal complexes of Schiff bases and pseudohalogens, their bonding aspects anvplications"., J. Indian Chem. Soc. 55,420. 9. Wilkinson, G.W., Gillard,,R.D., Meclverty, J.A.,,(1987) "Comprehensive coordination chemistry", 2.,John Wiely, New York. 10. D. Haff, T. Doudi. S. Chafa; Transition Metal Chemistry, (2003), " Synthesis, structure spectroscopic, magnetic and electrochemical studies of copper-copper and copper-zinc"., 29, 245. 11. Taggi, A.E. Hafez, A.M. Wack, H. Young, B. Ferraris, D. and , Lectka, T.,(2002)," Structural, spectroscopic, and biological studies of N,O donor Schiff base copper(II) complexes "., J Am. Chem. Soc., 124 6626. 12. Arg, G.,uelles, M.C.R. Belicchi, M.F. Bisceglie, F. Pelizzi, C. Pelosi, S. Pinelli, and Sassi, M. ,(2004)," Synthesis, structure and studies of enzymatic nuclease: mimics by copper(II) mixed ligand complexes with biologically important ligands: possible models for the chemistry of chemical nuclease"., J. Inorg. Biochem., 98 , 313. 13. Berkessel,A., Frauenkon,M., Schwenkreis,T., and Steinmetz., (1997)," Synthesis, characterization and superoxide dismutase activity of two new copper(II) complexes of benzoylpyridine 4-phenylsemicarbazone"., J. Mol. Catal. A., Chem., 117 , 339. 14. Kovbasyuk, L.A., Fritzy, I.O. , Kokozay, V. N. , and Iskendevov, T.S., (1997)," Copper(II) complexes with N-(2-hydroxyethyl)-2-iminodiacetic acid and imidazoles: Crystal structure spectroscopic studies and superoxide dismutase activity "., Tetrahedron, 16 , 1723. 15. Nishinaga, A., Tsutsui, T. , and Moriyama, H. (1993), "Copper(II) complexes as superoxide dismutase mimics: synthesis, characterization, crystal structure and superoxide dismutase activity (SOD) of copper(II) complexes"., J. Mol. Catal., 83 , 117. 397 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 16. Amirnasr, M., Vafazadeh, R. and Mahmoudkhani, A.H. (2002), " Synthesis, characterization and superoxide dismutase activity of a series of copper(II) complexes containing NNO donor Schiff base and benzimidazole ligands"., Can. J. Chem., 80 , 1196. 17. Koksal, H., Dolaz, M., Tumer, M. and Serin, S.,(2001), " X-ray K absorption near edge structure (XANES) study of some copper(II) mixed ligand complexes".,Inorg. Met.-Org. Chem., 31 , 1141. 18. Ghames, A., Douadi, T., Haffar, D., Chafaa, S., Allain, M., Khan, M.A. and Bouet, G.M. (2006), " Cobalt(II) and copper(II) in selective coordination of armed ligands: {3,5-dimethyl- 1H-pyrazol-1- yl )methyl]amino}acetic acid and {[bis-(3,5-dimethyl-1H-pyrazol-1- yl)methyl]amino}acetic acid ".., Polyhedron, 25 , 3201. 9. Titoshi, T., Tamao, N., Hideyuki, A., Manabu, F., and Takayuki, M. ,(1997), " Synthesis and spectral studies of class I mixed valence binuclear copper(II) copper(I) complexes"., Polyhedron, 16 , 3787. 20. Punniyamurthy, T., Kalra, S.J.S. and Iqbal, J., (1995)," Synthesis, characterization and biological activity of ternary copper(II) complexes containing polypyridyl ligands"., Tetrahedron Lett., 36 , 8497. 21. Trivedi, G.S. , and Desai, N.C. , (1992)," Synthesis, characterization and superoxide dismutase studies of square pyramidal copper(II) complexes with bi and tridentate polyamine ligands"., Indian J. Chem., B31 , 366. 22. Lane, L.W., and Taylor,L.T.J., (1973)," Synthesis, characterization and biological activity of ternary copper(II) complexes containing polypyridyl ligands".,Coord. Chem., 2, 295. 23. Xishi Tai, Xianhong yin, Qiang chen, and Minyuta; (2003), "Synthesis of some Transition Metal Complexes of a Novel Schiff Base Ligand Derived from 2,2-Bis (P-Methoxy phenyl amine and Salicylicaldehyde Molecules" , 8,.439-440. 24. EL-Bindary,A.A., AL-Shihri, A.S., EL-Sonbouti, A.Z., (2003), "Designed Monomers and polymers", 6,3,.283-298. 25. Souse, C., Freire,C., de costro,B., (2003)," Synthesis, spectra and biomimetic properties of copper(II)-copper(II) and copper(II)-zinc(II) binuclear complexes with CuN5 chromophores"., Molecules ,8, 894 . 26. Kemp, W. ,(1987), "Organic Spectroscopy" 2nd. Ed., John Wiely, New York, 144. 27. Parikh, V.M.,(1981), "Absorbtion spectroscopy of organic Molecules"., Translated by Abdul Hussain Khuthier, jasim M.A.AL-Rawi, and Mahammed A., AL-Iraqi . 28. Robert M.Silver Schtein, Bassler and Morrill; (1981), "Spectrophotometer Identication of Organic Compound", Translated by Dr.Hadi Khazem, Awad, Dr. Fahad Ali Hussain and Subhi Al-Azawi, 5th Ed., John Wiely , New York, 89. 29. pinchas, S. and Ben Ishai, D., (1957), " X-ray, spectral and biological (antimicrobial and superoxide dismutase) studies of oxalato bridged CuII NiII and CuII-ZnII complexes with pentamethyldiethylenetriamine as capping ligand"., J. Am. chem.. Soc., 79, 4099, 12. 30. Raju, K.C. and Radhakrishnan, P.K., (2003), "Complexes of cupper with 2,3 Dimethyl-4- fomyl (benzhydrazide)-1-phenyl-3-pyrazolin-5-one", Synthesis and reactivity in inorganic and metal-organic chemistry, 33, 8,.1307-1318. 31. El. Tbleand, A.S., Kasher, T. I. polish; (1998)," Paramagnetic resonance in imidazolate bridged homobinuclear copper-copper and heterobinuclear (copper-zinc complexes"., J. Chem.Soc. 72, 519. 32. EL-Sonbati, A.Z. and EL-Bindary, A.A., (2000), "Stereo chemistry of New Nitrogen cantaining Aldehydes. V. Novel Synthesis and spectroscopic studies of some Quinoline Schiff Bases complexes", J. Chem.Soc., 74,.621-630. 33. Ferraro, J., (1971), "Low Frquency Vibrations of Inorganic and Coordination Compounds", Plenum, New York. 398 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 34. Green Wood, N.N. and Earnshow, A., (1998), "Chemistry of the Elements", Ed. J. Wiley and Sons Inc. New York. 35. Lever, A.B.P.,(1968), "Inorganic Electronic Spectroscopy" 2nd Ed., New York. 36. Bonati F. and Vigo. R.,(1967), J.organomental. Chem., 10,. 257-268. 37. Geary. W. J., (1961), " Ternary and quaternary complexes of copper(II), nickel(II) and zinc(II) with 2,2’,2”- Terpyridine and imidazole A potentiometric study"., Coord. Rev. 7,81. Table No.(1): Some physical properties of the complexes and their reactants quantities. Complexes m.p °C Color Metal Chloride Weight of Metal Chloride (g) = 0.002 mole Weight of Product (g) Yield % Metal % Prac. (Theo.) [Cu(HL)Cl 290 Deep green CuCl2.2H2O 0.34 0.38 57 11.1 (11.39) [Zn(HL)Cl 257 Brown ZnCl2.×H2O 0.27 0.30 55 10.2 (11.68) [Cd(HL)Cl 310 Deep green CdCl2.×H2O 0.40 0.48 55 16.89 (16.53) [Hg(HL)Cl 340 Green HgCl2.×H2O 0.54 0.75 45 28.31 (28.87) 399 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 Table No.( 2): I.R Spectral data of the ligand and it's complexes. Table No.(3): Electronic spectral data, and conductance measurement for the ligand [H2L] and it's complexes. Comp. λ nm Wave number cm-1 εmax. Molar1 .cm-1 Assignment Λm (Ω1.cm2. Mole-1) Propose structure [L] 312 34013 2106 π→ π* n→ π* - - [Cu(HL)]Cl 301 3322 510 Ligand field Charge transfer 2B1g→ 2B2g 78 Tetrahedr al 330 440 699 1430 331 [Zn(HL)]Cl 314 3184 2318 Ligand field Charge transfer 66 Tetrahedr al 323 30959 1255 [Cd(HL)]Cl 302 3311 1384 Ligand field Charge transfer 69 Tetrahedr al 335 29850 1158 [Hg(HL)]Cl 301 3322 1288 Ligand field Charge transfer 62 Tetrahedr al 334 2994 983 Compound υ(O-H) phenol υ(O-H…O) hydrogen bonding υ(C=N) imine υ(C-N) υ(C-O) M-O M-N Others bands [H2L] 3414 1678 1261 1207 - υ(C=C) 1450 υ(C-H) alph. 2931 υ(C-H) arom. 3059 Cu(H2L)Cl 3323 1668 1290 1211 422 642 υ(C=C) 1444 υ(C-H) alph. 2980 υ(C-H) arom. 3058 Zn(H2L)Cl 3394 1678 1222 1180 424 651 υ(C=C) 1446 υ(C-H) alph. 2927 υ(C-H) arom. 3028 Cd(H2L)Cl 3371 1662 1284 1211 416 644 υ(C=C) 1396 υ(C-H) alph. 2947 υ(C-H) arom.3062 Hg(H2L)Cl 3379 1677 1256 1205 562 686 υ(C=C) 1352 υ(C-H) alph. 2920 υ(C-H) arom.3085 400 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 C O CH HO + NH2H2N Benzoin (2 mole) Ortho-phenylenediamine (1mole) g lac ial a cetic aci d m eth a n o l r efle x (4 ) h rs N N C C CH CH OH HO 1,2-[Bis-(1-phenyl-2-hydroxy-2-phynel)-imino]benzene [H2L] Scheme No.(1): The Synthesis route of the Ligand [H2L]. 401 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 N N C C CH CH OH HO + MCl2 m eth a n o l ref lu x e (2 h rs .) N N C C CH CH O O M Cl H MII = Cu, Zn, Cd, Hg Scheme No. (2): Preparation of the metal complexes. 402 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 N N C C CH CH O O M Cl H M=CuII, ZnII,CdII and HgII Figure NO .(1) : The suggested structure for the prepared complexes Figure No. (2): The I.R spectrum of the ligand [H2L] 403 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 Figure No.(2-1): The I.R spectrum of [Cu(HL)]Cl Figure No. (2-2):- The I.R spectrum of [Zn(HL)]Cl. Figure No.(2-3):- The I.R spectrum of [Cd(HL)]Cl 404 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 Figure No. (2-4). The I.R spectrum of [Hg(HL)]Cl Figure No. (3): The U.V spectrum of the ligand [H2L] Figure No. (3-1): The U.V spectrum of [Cu(HL)]Cl 405 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 Figure No. (3-2):The U.V spectrum of [Zn(HL)]Cl Figure No. (3-3):- The U.V spectrum of [Cd(HL)]Cl Figure No. (3-4): The U.V spectrum of [Hg(HL)]Cl 406 | Chemistry 2014) عام 3(العدد 27المجلد مجلة إبن الھيثم للعلوم الصرفة و التطبيقية Ibn Al-Haitham Jour. for Pure & Appl. Sci. Vol. 27 (3) 2014 ومعقداته مع 2O2Nتحضير ليكاند رباعي المنح نوع (CuII, ZnII, CdII and HgII)آيونات ميسون طارق توفيق أحالم جاسم زاير جامعة بغداد// كلية التربية للعلوم الصرفة( ابن الھيثم ) قسم الكيمياء منى اسماعيل خلف جامعة بغداد/قسم الكيمياء/ كلية العلوم 2014ايلول 29, قبل البحث في: 2014اذار 19استلم البحث في: الخالصة تضمن البحث تحضير ليكاند رباعي المنح [1,2-[Bis-(1-phenyl-2-hydroxy-2-phenyl)-amino)]benzene [H2L] ,CuII, ZnII) ثم مفاعلة الليكاند مع ايونات (benzoin) مع (ortho-phenylenediamine)وذلك من مفاعلة CdII and HgII) بوجود القاعدة KOH تكونت سلسلة من المعقدات (1:1) و باستخدام الميثانول وسطا للتفاعل وبنسبة Cl[M(HL)]الجديدة ذات الصيغة العامة : :ذإ M = (CuII, ZnII, CdII and HgII) المرئية , –ية األشعة فوق البنفسج، واألشعة تحت الحمراء اآلتية:لمحضرة بوساطة التقنيات شخصت جميع المركبات ا HPLC موالرية ودرجات االنصھار , مع قياس التوصيلية ال ،محتوى الكلورومطيافية االمتصاص الذري للعناصر , و, ھو شكل رباعي اس والزنك والكادميوم والزئبقالكھربائية. من معطيات التحليل فأن الشكل الفراغي المقترح لمعقدات النح السطوح. تحضير، قواعد شيف، ليكاند رباعي السن . - الكلمات المفتاحية: