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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 41, Number 12
JKCSEZ 41(12)
December 20, 1997 

Synthesis of Cp*Ru(CO)Cl2(Cp*=η5-C5Me5) Complex and Reaction with Phosphines

Cp*Ru(CO)Cl2(Cp*=η5-C5Me5)착물의 합성과 포스핀과의 반응
Dong Hwan Lee*, Sng Il Kim, Jin Hee Jun, Yung Hee Oh, Sang Kyu Kam

톨루엔 용매중애서 [Cp*·RuCl2]2(1, Cp*=ㅐ5-C5Me5)과 CO를 반응시켜 상자기성의 3가 카르보닐루테늄착물 Cp*·Ru(CO)CI2(2)를 합성하였다. 자기화율의 측정으로부터 얻어진 착물(2)의 유효자기모멘트 값은 1.81B.M.으로 이는 분자내 짝을 이루지 않는 전자가 1개 있는 경우와 거의 일치하였다. 착물(2)는 톨루엔 용매중에서 KBr과의 반응에 의해 3가의 디브로모루테늄착물 Cp*Ru(CO)Br2(3)으로 변환되었고, 톨루엔 용매중에서 포스핀과의 반응에 의해서는 반자기성인 2가 루테늄착물 Cp*Ru(CO)(PR3)C1(4a~4e, PR3=PMe3, PEt3, PMePh2, PPh3, PCy3)로 쉽게 환원되었다.

Novel carbonylruthenium (Ⅲ) complex Cp*Ru(CO)Cl2(2, Cp*=η5-C5Me5) was synthesized by the reaction of [Cp*RuCl2]2(1) with CO in toluene. The effective magnetic moment (Veff=1.81 B.M.) derived from the magnetic susceptibility measurement of the complex (2) was consistent with the presence of one "single" unpaired electron. Dibromocarbonylruthenium (Ⅲ) complex Cp*Ru(CO)Br2(3) was obtained by the reaction of complex (2) with KBr in toluene. Complex (2) was easily reduced by the reaction with phosphine in toluene to give the corresponding Ru (Ⅱ) complex Cp*Ru(CO)(PR3)Cl (4a∼4e, PR3=PMe3, PEt3, PMePh2, PPh3, PCy3).

639 - 644
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