Georgian Scientists/ . 6 N 3, 2024 215 Georgian Scientists Vol. 6 Issue 3, 2024 https://doi.org/10.52340/gs.2024.06.03.20 2- - 1, 2, 3, 4, 5 1 , , giorgi.pitiurishvili456@ens.tsu.ge 2 , , maka.popiashvili411@ens.tsu.edu.ge 3 , , alexander.tlashadze@gmail.com 4 , , nino.nikoleishvili@tsu.ge 5 , , elene.katsadze@tsu.ge, https://orcid.org/0009-0003-0327-2917 . . , (OLED ) [1]. . 1,2- (2- -1H- -3- ) - 2- -1H- -3- . . . , . : 2- , , Georgian Scientists/ . 6 N 3, 2024 216 . - , . , , , , . - , [2-7]. - , - , . 2- - , 3- . 2- , ( 1). 1. 2- (2a-b) . - , , . , TiCl4 TiCl3, Ti0 - , , . , TiCl4. : . . - . 30 , 2a-b . 2 . , . 3a-b 30-50%- . 2). Georgian Scientists/ . 6 N 3, 2024 217 N H 2 N H H N THF TiCl4/Zn 2a-b 3a-b R R R (2a)R=H, (2b)R=Br (3a)R=H, (3b)R=Br O H 2. (2a-b) - . 3 3a (c=0.01 , ) 30 60 . 3. 3a 375 . 30 296 , 60 - 293 . 3a - . 375.0119629, 0.217406422 296.0188599, 0.411180407 293.000946, 0.431928873 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 250 350 450 550 , ) 30 60 Georgian Scientists/ . 6 N 3, 2024 218 4. 3a . 3a (c=0.015 ) 4), 376 - , 600C- - , , 373 . , 600C- 3a . - TLC Silica gel 60 F254 Merk- . . - SHIMADZU „IRSpirit“- . Cary-60. 1H-NMR Bruker Avance 400- . : A&E Lab DMP-800. 2- -1H- -3- (2a-b) . -50C- 49.3 1,2 , 1 -50C- 3 3 DMF- . 30-350C- . - , -6:1; , , , . 1,2- (2- )-1H- -3- (3a-b) . 0,4 (6 ) 10 , - 5oC- 0.325 (3 ) TiCl4 . Georgian Scientists/ . 6 N 3, 2024 219 0.5 2.5 . -5oC- 0.125 (1.5 ) , 10 0.6 (7a-c) 4 THF- . ; , 20 K2CO3 10%- , . CaO- , . 2 . . , , - 15:1. , , . 1,2- (2- )-1H- -3- (3a). . T = 167–1680C; (KBr, -1): 3372(NH), 3052 (=CH); ) max: 248,276, 368, min: 232, 264, 332; 1H (400 MHz, ): = 11.60 (s, 2H, NH), 7.87 (d, 2H, Ar, J = 8 Hz), 7.74–7.78 (m, 4H, Ar), 7.62–7.66 (m, 4H, Ar), 7.45 (dt, J = 8.0, 2H) 7.35 (s, 2H) , 7.11-7.22 (m, 4H). 13C (100 MHz, ): =137, 132, 131, 126, 123, 121, 112. 1,2- (2-( )-1H- -3- (3b). . T = 200–2020C; (KBr, -1): 3371(NH), 3054 (=CH); ) max: 252,284, 376, min: 232, 268, 336; 1H (400 MHz, ): = 11.54 (s, 2H), 7.86 (d, J = 8.0 Hz, 2H), 7.78 – 7.68 (m, 5H), 7.58 (t, J = 7.7 Hz, 5H), 7.46 (t, J = 7.5 Hz, 4H), 7.42 (s, 2H), 7.18 (ddd, J = 8.1, 6.9, 1.1 Hz, 2H), 7.10 (ddd, J = 8.2, 7.0, 1.2 Hz, 2H). 13C (100 MHz, ): =137, 136, 129, 128, 126, 122, 121, 120, 112, 111. [1] C.W. Lee, J.Y. Lee, Above 30% external quantum efficiency in blue phosphorescent organic light- emitting diodes using pyrido[2,3-b]indole derivatives as host materials, Adv. Mater. 25 (2013) 5450– 5454, doi:http://dx. doi.org/10.1002/adma.201301091 [2] National Distillers and Chemical Corp., US Patent No. 3222290 (1962); J. Soc. Dyers Col., 83, 126 (1967); [3] M. Tibu, I. Viserian, B. Arvertiev, H. Offenberg, and T. Nicolaescu, Analete Stiint. Univ. A. I. Cuza, Iasi Sect. I, 9, 261 (1963); Chem. Abstr., 60, 2434 (1964); [4] D.G. Oft, F. N. Hayes, E. I~ansbury, and V. N. Kerr, J. Amer. Chem. Soc., 79, 5448 (1957); [5] R. H. Wiley, C. H. Jarboe, F. N. Hayes, E. Hansbury, J. T. Nielsen, P. X. Collahan, and M. C. Sellers, J. Org. Chem., 23, 732 (1958); [6] N. F. Levchenko, V. M. Solomonov, t. A. Shevchenko, and B. M. Krasovitskii, in: Single Crystals, Scintillators, and Organic Luminophores [in Russian], Kharkov, No. 4 (1968), p. 186. [7] G. F. Slezko, Author's Abstract of Master's Dissertation, Kharkov 1971); Georgian Scientists/ . 6 N 3, 2024 220 ( N F R-21-1456 ). Synthesis of a some conjugated organic luminophore based of 2-p-biphenylindole Giorgi Pitiurishvili1, Maka Popiashvili2, leqso Tlashadze3, Nino Nikoleishvili4, Elene Katsadze5 Iv. Javakhishvili Tbilisi state university, Tbilisi, Georgia 1Master's student, department of chemistry of Organic and Natural compounds, giorgi.pitiurishvili456@ens.tsu.ge 2PHD student, department of chemistry of Organic and Natural compounds, maka.popiashvili411@ens.tsu.edu.ge 3PHD student, department of chemistry of Organic and Natural compounds, alexander.tlashadze@gmail.com 4Assistant-professor, department of chemistry of Organic and Natural compounds, nino.nikoleishvili@tsu.ge 5Assistant-professor, department of chemistry of Organic and Natural compounds, elene.katsadze@tsu.ge, https://orcid.org/0009-0003-0327-2917 Annotation Compounds with fluorescent properties are widely used in many fields of medicine and industry. It is especially important and relevant to use them for marking cells, in high-efficiency diode solar energy lamps and light-emitting diodes (OLED screens), as well as an organic additive in perovskite systems. The purpose of our work was the synthesis of new conjugated bis-indoles with potential fluorescence capability. The target conjugated 1,2-bis(2-phenyl-1H-indol-3-yl)ethenes were synthesized by the condensation reaction of 2-phenyl-1H-indole-3-carbaldehydes based on the McMurry reaction. We determined the optimal reaction conditions. We studied the structure of target products by physical research methods. By means of ultraviolet spectroscopy, we determined that our synthesized compounds have the ability to fluoresce. Key words: 2-Phenylindole, Luminophore, McMurry reaction ACKNOWLEDGMENTS: This project was supported financially by the Shota Rustaveli National Science Foundation of Georgia (grant YS-59-2016)