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Substitution reactions with [ReBr2(CO)2(NCCH3)2]-: a convenient route to complexes with the cis-[Re(CO)2]+ core


Kromer, L; Spingler, B; Alberto, R (2008). Substitution reactions with [ReBr2(CO)2(NCCH3)2]-: a convenient route to complexes with the cis-[Re(CO)2]+ core. Dalton Transactions, (42):5800-5806.

Abstract

Water- and air-stable complexes comprising the cis-[Re(CO)2]+ core can be synthesized from the (Et4N)[ReBr2(NCCH3)2(CO)2] precursor 1. Complex 1 showed distinctly different chemical and electronic behaviour compared to [ReBr3(CO)3]2-. Substituting the two bromides in 1 with imidazole-like ligands or ,-diimines gave new complexes with potential applications in bioinorganic chemistry and photochemistry. The two acetonitrile ligands are very stably bound and could not be replaced. Under CO pressure, the uncommon complex mer-[ReBr(NCCH3)2(CO)3] 2 was formed from 1. The reaction of 1 with the tetradentate ligand bis(2-pyridylmethyl)glycine (BPG) finally induced a four fold substitution at the metal center to form a [Re(CO)2(L4)]+-type complex.

Water- and air-stable complexes comprising the cis-[Re(CO)2]+ core can be synthesized from the (Et4N)[ReBr2(NCCH3)2(CO)2] precursor 1. Complex 1 showed distinctly different chemical and electronic behaviour compared to [ReBr3(CO)3]2-. Substituting the two bromides in 1 with imidazole-like ligands or ,-diimines gave new complexes with potential applications in bioinorganic chemistry and photochemistry. The two acetonitrile ligands are very stably bound and could not be replaced. Under CO pressure, the uncommon complex mer-[ReBr(NCCH3)2(CO)3] 2 was formed from 1. The reaction of 1 with the tetradentate ligand bis(2-pyridylmethyl)glycine (BPG) finally induced a four fold substitution at the metal center to form a [Re(CO)2(L4)]+-type complex.

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8 citations in Web of Science®
7 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:November 2008
Deposited On:21 Feb 2009 20:17
Last Modified:05 Apr 2016 13:03
Publisher:Royal Society of Chemistry
ISSN:1477-9226
Publisher DOI:10.1039/b805410j
PubMed ID:18941668

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