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

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 nitr...

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Main Authors: Subhan, M.A., Choi, Jong-Ha, Ng, S.W.
Format: Article
Published: 2011
Subjects:
QC Physics
Online Access:http://eprints.um.edu.my/14647/
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spelling my.um.eprints.146472015-11-07T03:57:52Z http://eprints.um.edu.my/14647/ Synthesis, crystal structure and spectroscopic properties of (Acetylacetonato)(1,4,8,11-tetraazacyclotetradecane)chromium (III) diperchlorate Subhan, M.A. Choi, Jong-Ha Ng, S.W. QC Physics 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. 2011 Article PeerReviewed 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.
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QC Physics
spellingShingle QC Physics
Subhan, M.A.
Choi, Jong-Ha
Ng, S.W.
Synthesis, crystal structure and spectroscopic properties of (Acetylacetonato)(1,4,8,11-tetraazacyclotetradecane)chromium (III) diperchlorate
description 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.
format Article
author Subhan, M.A.
Choi, Jong-Ha
Ng, S.W.
author_facet Subhan, M.A.
Choi, Jong-Ha
Ng, S.W.
author_sort Subhan, M.A.
title Synthesis, crystal structure and spectroscopic properties of (Acetylacetonato)(1,4,8,11-tetraazacyclotetradecane)chromium (III) diperchlorate
title_short Synthesis, crystal structure and spectroscopic properties of (Acetylacetonato)(1,4,8,11-tetraazacyclotetradecane)chromium (III) diperchlorate
title_full Synthesis, crystal structure and spectroscopic properties of (Acetylacetonato)(1,4,8,11-tetraazacyclotetradecane)chromium (III) diperchlorate
title_fullStr Synthesis, crystal structure and spectroscopic properties of (Acetylacetonato)(1,4,8,11-tetraazacyclotetradecane)chromium (III) diperchlorate
title_full_unstemmed Synthesis, crystal structure and spectroscopic properties of (Acetylacetonato)(1,4,8,11-tetraazacyclotetradecane)chromium (III) diperchlorate
title_sort synthesis, crystal structure and spectroscopic properties of (acetylacetonato)(1,4,8,11-tetraazacyclotetradecane)chromium (iii) diperchlorate
publishDate 2011
url http://eprints.um.edu.my/14647/
_version_ 1643689866726211584
score 13.188404

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