Crystal structure and spectroscopic properties of oxalato(1,4,8,11- tetraazacyclotetradecane)chromium(III) perchlorate

Jong Ha Choi; In Gyung Oh; Takayoshi Suzuki; Sumio Kaizaki

doi:10.1016/j.molstruc.2004.01.034

Crystal structure and spectroscopic properties of oxalato(1,4,8,11- tetraazacyclotetradecane)chromium(III) perchlorate

Jong Ha Choi, In Gyung Oh, Takayoshi Suzuki, Sumio Kaizaki

Research output: Contribution to journal › Article › peer-review

61 Citations (Scopus)

Abstract

The crystal structure of [Cr(ox)cyclam]ClO₄ has been determined by X-ray crystallography. The macrocyclic cyclam is folded along the N(4) and N(11) direction with the four N atoms coordinated to the Cr atom and the two O atoms occupying the two remaining positions. The complex cation unit has its central Cr atom in a distorted octahedral coordination with two Cr-O and four Cr-N bonds at average distances 1.959 and 2.077Å, respectively. The zero-phonon line in the sharp-line absorption spectrum splits into two components by 81 cm^-1. The UV-visible and IR spectra have also been measured. The spectral properties of the title complex reflect the bidentate coordination of oxalate and the cis-V configuration of the cyclam ligand.

Original language	English
Pages (from-to)	39-44
Number of pages	6
Journal	Journal of Molecular Structure
Volume	694
Issue number	1-3
DOIs	https://doi.org/10.1016/j.molstruc.2004.01.034
Publication status	Published - Jun 2004
Externally published	Yes

Keywords

Crystal structure
Cyclam
Oxalato chromium(III) complex
Spectral properties

ASJC Scopus subject areas

Analytical Chemistry
Spectroscopy
Organic Chemistry
Inorganic Chemistry

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10.1016/j.molstruc.2004.01.034

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@article{91ba8ecc29e04cb3a07237a29c162dd1,

title = "Crystal structure and spectroscopic properties of oxalato(1,4,8,11- tetraazacyclotetradecane)chromium(III) perchlorate",

abstract = "The crystal structure of [Cr(ox)cyclam]ClO4 has been determined by X-ray crystallography. The macrocyclic cyclam is folded along the N(4) and N(11) direction with the four N atoms coordinated to the Cr atom and the two O atoms occupying the two remaining positions. The complex cation unit has its central Cr atom in a distorted octahedral coordination with two Cr-O and four Cr-N bonds at average distances 1.959 and 2.077{\AA}, respectively. The zero-phonon line in the sharp-line absorption spectrum splits into two components by 81 cm-1. The UV-visible and IR spectra have also been measured. The spectral properties of the title complex reflect the bidentate coordination of oxalate and the cis-V configuration of the cyclam ligand.",

keywords = "Crystal structure, Cyclam, Oxalato chromium(III) complex, Spectral properties",

author = "Choi, {Jong Ha} and Oh, {In Gyung} and Takayoshi Suzuki and Sumio Kaizaki",

note = "Funding Information: We should like to thank Prof. E. Krausz for use of his microcrystal spectrometer and Dr Barry Prince and Mr Lesley Debono for assistance with recording the low-temperature absorption and emission spectra at Australian National University. We also acknowledge financial support from the Andong National University (2003). ",

year = "2004",

month = jun,

doi = "10.1016/j.molstruc.2004.01.034",

language = "English",

volume = "694",

pages = "39--44",

journal = "Journal of Molecular Structure",

issn = "0022-2860",

publisher = "Elsevier",

number = "1-3",

}

TY - JOUR

T1 - Crystal structure and spectroscopic properties of oxalato(1,4,8,11- tetraazacyclotetradecane)chromium(III) perchlorate

AU - Choi, Jong Ha

AU - Oh, In Gyung

AU - Suzuki, Takayoshi

AU - Kaizaki, Sumio

N1 - Funding Information: We should like to thank Prof. E. Krausz for use of his microcrystal spectrometer and Dr Barry Prince and Mr Lesley Debono for assistance with recording the low-temperature absorption and emission spectra at Australian National University. We also acknowledge financial support from the Andong National University (2003).

PY - 2004/6

Y1 - 2004/6

N2 - The crystal structure of [Cr(ox)cyclam]ClO4 has been determined by X-ray crystallography. The macrocyclic cyclam is folded along the N(4) and N(11) direction with the four N atoms coordinated to the Cr atom and the two O atoms occupying the two remaining positions. The complex cation unit has its central Cr atom in a distorted octahedral coordination with two Cr-O and four Cr-N bonds at average distances 1.959 and 2.077Å, respectively. The zero-phonon line in the sharp-line absorption spectrum splits into two components by 81 cm-1. The UV-visible and IR spectra have also been measured. The spectral properties of the title complex reflect the bidentate coordination of oxalate and the cis-V configuration of the cyclam ligand.

AB - The crystal structure of [Cr(ox)cyclam]ClO4 has been determined by X-ray crystallography. The macrocyclic cyclam is folded along the N(4) and N(11) direction with the four N atoms coordinated to the Cr atom and the two O atoms occupying the two remaining positions. The complex cation unit has its central Cr atom in a distorted octahedral coordination with two Cr-O and four Cr-N bonds at average distances 1.959 and 2.077Å, respectively. The zero-phonon line in the sharp-line absorption spectrum splits into two components by 81 cm-1. The UV-visible and IR spectra have also been measured. The spectral properties of the title complex reflect the bidentate coordination of oxalate and the cis-V configuration of the cyclam ligand.

KW - Crystal structure

KW - Cyclam

KW - Oxalato chromium(III) complex

KW - Spectral properties

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U2 - 10.1016/j.molstruc.2004.01.034

DO - 10.1016/j.molstruc.2004.01.034

M3 - Article

AN - SCOPUS:2342485964

SN - 0022-2860

VL - 694

SP - 39

EP - 44

JO - Journal of Molecular Structure

JF - Journal of Molecular Structure

IS - 1-3

ER -

Crystal structure and spectroscopic properties of oxalato(1,4,8,11- tetraazacyclotetradecane)chromium(III) perchlorate

Abstract

Keywords

ASJC Scopus subject areas

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