# Synthesis and reactivity of ReBr2(NCCH3)(2)(CO)2](-): A new precursor for bioorganometallic chemistry

Kromer, Lukas; Spingler, Bernhard; Alberto, Roger (2007). Synthesis and reactivity of ReBr2(NCCH3)(2)(CO)2](-): A new precursor for bioorganometallic chemistry. Journal of Organometallic Chemistry, 692(6):1372-1376.

## Abstract

We have synthesised (Et4N)ReBr2(NCCH3)(2)(CO)(2)] 1 in two steps from ReBr3(CO)(3)](2-). Complex I is water and air stable and the two Br- ligands are easily exchanged for coordinating solvent molecules such as water. The reactivity of I with several ligands such as imidazole (imz) and 2-picolinic acid (2-pic) are easily possible with substitution exclusively occurring in trans-position to the carbonyl groups. The resulting complexes Re(iMZ)(2)(NCCH3)(2)(CO)(2)](+) and Re(2-pic)(NCCH3)(2)(CO)(2)] have been isolated and structurally characterised. The two acetonitrile ligands are strongly bound and are not substituted under any conditions. Complex I represents therefore the new moiety tran,cis-Re(NCCH3)(2)(CO)(2)](+)'' which can be considered as a further building block in organometallic chemistry. (C) 2006 Elsevier B.V. All rights reserved.

We have synthesised (Et4N)ReBr2(NCCH3)(2)(CO)(2)] 1 in two steps from ReBr3(CO)(3)](2-). Complex I is water and air stable and the two Br- ligands are easily exchanged for coordinating solvent molecules such as water. The reactivity of I with several ligands such as imidazole (imz) and 2-picolinic acid (2-pic) are easily possible with substitution exclusively occurring in trans-position to the carbonyl groups. The resulting complexes Re(iMZ)(2)(NCCH3)(2)(CO)(2)](+) and Re(2-pic)(NCCH3)(2)(CO)(2)] have been isolated and structurally characterised. The two acetonitrile ligands are strongly bound and are not substituted under any conditions. Complex I represents therefore the new moiety tran,cis-Re(NCCH3)(2)(CO)(2)](+)'' which can be considered as a further building block in organometallic chemistry. (C) 2006 Elsevier B.V. All rights reserved.

## Citations

6 citations in Web of Science®
8 citations in Scopus®

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Item Type: Journal Article, refereed, original work 07 Faculty of Science > Department of Chemistry 540 Chemistry English February 2007 23 Oct 2012 12:44 05 Apr 2016 16:01 Elsevier 0022-328X 3rd International Symposium on Bioorganometallic Chemistry (ISBOMC 06), Milan, ITALY, JUL 05-08, 2006 https://doi.org/10.1016/j.jorganchem.2006.10.043 ISI:000246420100026
Permanent URL: https://doi.org/10.5167/uzh-65726