Synthesis, crystal structure and spectroscopic properties of (Acetylacetonato)(1,4,8,11-tetraazacyclotetradecane)chromium (III) diperchlorate

Subhan, M.A. and Choi, Jong-Ha and Ng, S.W. (2011) Synthesis, crystal structure and spectroscopic properties of (Acetylacetonato)(1,4,8,11-tetraazacyclotetradecane)chromium (III) diperchlorate. Zeitschrift fur Anorganische und Allgemeine Chemie, 637 (14-15). pp. 2193-2197.

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Abstract

The complex [Cr(cyclam)(acac)](ClO(4))(2)center dot 0.5H2O (cyclam = 1,4,8,11-tetraazacyclotetradecane; acac = acetylacetonate) was prepared and structurally characterized by single-crystal X-ray diffraction at 100 K. The chromium atom is in a slightly distorted octahedral environment with four nitrogen atoms of the macrocyclic ligand and two O-bonded acac molecules in cis position. The cyclam ligand adopts the folded cis-V configuration with six- and five-membered chelate rings in chair and gauche conformation, respectively. The average CrN(cyclam) and CrO(acac) bonds are 2.080(4) and 1.941(3) angstrom, respectively. The IR and visible spectral properties are also described.

Item Type: Article
Funders: UNSPECIFIED
Subjects: Q Science > QC Physics
Depositing User: MR Faizal II H
Date Deposited: 07 Nov 2015 03:57
Last Modified: 07 Nov 2015 03:57
URI: http://eprints.um.edu.my/id/eprint/14647

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