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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| Format: | Article |
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2011
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| 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. |
| collection | UM |
| 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. |
| first_indexed | 2024-03-06T05:36:57Z |
| format | Article |
| id | um.eprints-14647 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:36:57Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | 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. |
| 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 |
| title | 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_short | 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 |
| topic | QC Physics |
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