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含有二价和三价金属化2-乙烯基吡嗪配体的低价簇中心的新型分子结构：Ru(CO)(μ-CHNCH=CH)(μ-H)和Ru(CO)(μ-CHNCH=C)(μ-H)的合成与分子结构

New molecular architectures containing low-valent cluster centres with di- and trimetalated 2-vinylpyrazine ligands: synthesis and molecular structures of Ru(CO)(μ-CHNCH[double bond, length as m-dash]CH)(μ-H) and Ru(CO)(μ-CHNCH[double bond, length as m-dash]C)(μ-H).

作者信息

Hossain Md Monir, Akter Nahid, Ghosh Shishir, Nesterov Vladimir N, Richmond Michael G, Hogarth Graeme, Kabir Shariff E

机构信息

Department of Chemistry, Jahangirnagar University Savar Dhaka 1342 Bangladesh

Department of Chemistry, University of North Texas Denton TX 76209 USA.

出版信息

RSC Adv. 2019 Jul 4;9(36):21025-21030. doi: 10.1039/c9ra03841h. eCollection 2019 Jul 1.

DOI:10.1039/c9ra03841h
PMID:35515538
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9066017/
Abstract

Reaction of 2-vinylpyrazine with Ru(CO) results in multiple C-H bond activations to afford penta- and octa-ruthenium clusters, Ru(CO)(μ-CHNCH[double bond, length as m-dash]CH)(μ-H) (2) and Ru(CO)(μ-CHNCH[double bond, length as m-dash]C)(μ-H) (3), in which a Ru sub-unit is linked to Ru and Ru centres di- and tri-metalated 2-vinylpyrazine ligands, exhibiting novel coordination modes including the loss of ring aromaticity in 2. The bonding of 2 and the mechanism for the fluxional behaviour of the hydrides have been examined by electronic structure calculations.

摘要

2-乙烯基吡嗪与Ru(CO)反应会导致多个C-H键活化，生成五核和八核钌簇合物Ru(CO)(μ-CHNCH═CH)(μ-H) (2) 和Ru(CO)(μ-CHNCH═C)(μ-H) (3)，其中一个Ru亚基与通过双金属化和三金属化的2-乙烯基吡嗪配体连接的Ru中心相连，展示出包括2中芳环芳香性丧失在内的新型配位模式。已通过电子结构计算研究了2的键合以及氢化物的动态行为机制。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/07796d658bc1/c9ra03841h-s4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/a98986f88719/c9ra03841h-c1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/b0696f236d4b/c9ra03841h-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/223cb9af67b9/c9ra03841h-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/d2b45e555885/c9ra03841h-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/249ced485ec7/c9ra03841h-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/fad7f7db5b35/c9ra03841h-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/f616437e8c31/c9ra03841h-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/5661f650fe62/c9ra03841h-s3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/07796d658bc1/c9ra03841h-s4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/a98986f88719/c9ra03841h-c1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/b0696f236d4b/c9ra03841h-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/223cb9af67b9/c9ra03841h-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/d2b45e555885/c9ra03841h-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/249ced485ec7/c9ra03841h-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/fad7f7db5b35/c9ra03841h-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/f616437e8c31/c9ra03841h-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/5661f650fe62/c9ra03841h-s3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a914/9066017/07796d658bc1/c9ra03841h-s4.jpg

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