Synthesis and Nonlinear Optical Properties of Carbonylrhenium Bromide Complexes with Conjugated Pyridines

✍ Scribed by Oliver Briel; Karlheinz Sünkel; Ingo Krossing; Heinrich Nöth; Elmar Schmälzlin; Klaus Meerholz; Christoph Bräuchle; Wolfgang Beck

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 339 KB
• Volume: 1999
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/(sici)1099-0682(199903)1999:3<483::aid-ejic483>3.0.co;2-5

✦ Synopsis

Carbonylrhenium bromide complexes fac-Br(OC) 3 ReL 2 CH-p-C 5 H 4 N (2a), and p-Me 2 N-C 6 H 4 -CH=CHC(CH 3 )= CHCH=CHCH=C(CH 3 )-CH=CH-p-C 5 H 4 N (2b) have been (3a,b, 4a,b) and cis-Br(OC) 4 ReL (5a,b) with conjugated pyridines L = Fc-CH=CH-p-C 5 H 4 N (1a), Fc-CH=CHC-synthesized. The structures of 4a and 5a have been determined by X-ray diffraction analysis. Compound 4a (CH 3 )=CHCH=CHCH=C(CH 3 )CH=CH-p-C 5 H 4 N (1b), 1,1Ј-Fc(-CH=CH-p-C 5 H 4 N) 2 (1c), p-Me 2 N-C 6 H 4 -CH=CHCH= exhibits a remarkable quadratic hyperpolarizability.