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Abstract:
Treatment of [Os-3(CO) (10)(NCMe) (2)] with an equimolar amount of 4-vinylpyridine, 4-ethynylpyridine and 4-ethylpyridine at room temperature readily gave the cluster complexes [Os-3(mu-H)(CO)(10)(mu-NC5H3CH = CH2)] 1, [Os-3(mu-H)(CO)(10)(mu-NC5H3C= CH)](2) and [Os3(CO)(10)(mu-H)(mu-NC5H3CH2CH3)](3), respectively. The corresponding ruthenium analogue of 1, [Ru-3(mu-H)(CO)(10)(mu-NC5H3CH = CH2)] (4), was also prepared in good yield by thermal reaction of Ru-3(CO)(12) with 4-vinylpyridine. Then, five thermally stable polymer-immobilized clusters of osmium 5-9 have been synthesized by the solution copolymerization of triosmium cluster-based monomers 1 and 2 with styrene, methyl methacrylate, vinylferrocene and 4-vinylphenylboronic acid, respectively, in the presence of alpha,alpha'-azobis(isobutyronitrile) (AIBN) in chloroform at 60 degrees C. Characterization of all new compounds was achieved by a combination of FTIR, NMR, MS, GPC, electronic absorption and thermal gravimetric analysis techniques. Crystal structure determinations were also carried out for complexes 1, 3 and 4. (C) 2018 Elsevier B.V. All rights reserved.
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JOURNAL OF ORGANOMETALLIC CHEMISTRY
ISSN: 0022-328X
Year: 2018
Volume: 870
Page: 8-15
2 . 0 6 6
JCR@2018
2 . 1 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
ESI HC Threshold:209
JCR Journal Grade:3
CAS Journal Grade:3
Cited Count:
WoS CC Cited Count: 2
SCOPUS Cited Count: 2
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 2
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