TY - JOUR
T1 - Synthesis, structure, and reactivities of the Ru-Co heterobimetallic complex
AU - Matsuzaka, Hiroyuki
AU - Ichikawa, Koji
AU - Ishioka, Tomohiro
AU - Sato, Haru
AU - Okubo, Takashi
AU - Ishii, Tomohiko
AU - Yamashita, Masahiro
AU - Kondo, Mitsuru
AU - Kitagawa, Susumu
N1 - Funding Information:
We thank Professor Haruo Matsuyama of TMU for measuring mass spectra. This work was supported by a Grant–in–Aid for Scientific Research (No. 10640549, Priority Areas No. 284-11120246 and 401-10149104) from The Ministry of Education, Science, Sports and Culture, Japan.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2000/2/29
Y1 - 2000/2/29
N2 - Treatment of Cp*Ru(CO)2Cl (Cp* = η5-C5Me5) with NaCo(CO)4 produces the metal-metal bonded heterobimetallic complex Cp*Ru(CO)2(μ2-CO)Co(CO)3 (2b). Substitution of the CO ligands by the Ph2PCH2PPh2 (dppm) leads to the isolation of Cp*Ru(μ2-CO)2(μ2-dppm)Co(CO) 2 (3) whereas that by ButNC gives Cp*Ru(CO)(CNBut)(μ2-CO)Co(CO)3 (4). Stoichiometric head-to-tail dimerization of p-tolylacetylene at the bimetallic site of 2b proceeds to form the dinuclear metallacyclopentadiene complex Cp*(CO)Ru{η2:η4-μ 2-C(Tol)CHC(Tol)CH}Co(CO)2 (5) in which two alkyne molecules are coupled to form a ruthenacyclopentadiene core which coordinates to the Co(CO)2 fragment. On the other hand, catalytic head-to-head coupling of methyl propiolate in the presence of 2b yields (E)-(MeO2C)CH=CH(C=CCO2Me) (6). The molecular structures of 2b, 3, 4, and 5 have been determined by X-ray crystallography.
AB - Treatment of Cp*Ru(CO)2Cl (Cp* = η5-C5Me5) with NaCo(CO)4 produces the metal-metal bonded heterobimetallic complex Cp*Ru(CO)2(μ2-CO)Co(CO)3 (2b). Substitution of the CO ligands by the Ph2PCH2PPh2 (dppm) leads to the isolation of Cp*Ru(μ2-CO)2(μ2-dppm)Co(CO) 2 (3) whereas that by ButNC gives Cp*Ru(CO)(CNBut)(μ2-CO)Co(CO)3 (4). Stoichiometric head-to-tail dimerization of p-tolylacetylene at the bimetallic site of 2b proceeds to form the dinuclear metallacyclopentadiene complex Cp*(CO)Ru{η2:η4-μ 2-C(Tol)CHC(Tol)CH}Co(CO)2 (5) in which two alkyne molecules are coupled to form a ruthenacyclopentadiene core which coordinates to the Co(CO)2 fragment. On the other hand, catalytic head-to-head coupling of methyl propiolate in the presence of 2b yields (E)-(MeO2C)CH=CH(C=CCO2Me) (6). The molecular structures of 2b, 3, 4, and 5 have been determined by X-ray crystallography.
KW - Alkyne
KW - Cobalt
KW - Dinuclear metallacyclopentadiene
KW - Enyne
KW - Heterobimetallic complex
KW - Ruthenium
UR - http://www.scopus.com/inward/record.url?scp=0001027140&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0001027140&partnerID=8YFLogxK
U2 - 10.1016/S0022-328X(99)00608-7
DO - 10.1016/S0022-328X(99)00608-7
M3 - Article
AN - SCOPUS:0001027140
VL - 596
SP - 121
EP - 129
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
SN - 0022-328X
IS - 1-2
ER -