A novel hydroxo-bridged cyclic tetranuclear copper(II) complex using the guanazole ligand: Synthesis, crystal structure and thermal analysis

Aurkie Ray; Samiran Mitra; Georgina M. Rosair

doi:10.1016/j.inoche.2008.07.010

A novel hydroxo-bridged cyclic tetranuclear copper(II) complex using the guanazole ligand: Synthesis, crystal structure and thermal analysis

Aurkie Ray, Samiran Mitra, Georgina M. Rosair

School of Engineering & Physical Sciences

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

7 Citations (Scopus)

Abstract

A novel hydroxo-bridged cyclic tetranuclear copper(II) complex with the guanazole ligand (3,5-diamino-1,2,4-triazole = Hdatrz), [Cu₄(datrz)₄(µ₂-OH)₂(NO₃) (H₂O)₆] · (NO₃) · 5(H₂O) (1) has been synthesised and characterised by X-ray crystallography. In 1, the four copper(II) centres are linked by hydroxo bridges and the N1,N2-coordination of the deprotonated guanazole ligands. The core has considerably short Cu?Cu distances in the range of 3.3550(4)-3.3611(4) Å. Thermal analysis of 1 reveals that the cyclic framework constructed with hydroxo and guanazole ligands is stable up to 285 °C. Crown Copyright © 2008.

Original language	English
Pages (from-to)	1256-1259
Number of pages	4
Journal	Inorganic Chemistry Communications
Volume	11
Issue number	10
DOIs	https://doi.org/10.1016/j.inoche.2008.07.010
Publication status	Published - Oct 2008

Keywords

Copper(II) complex
Cyclic tetranuclear
Guanazole ligand
Hydroxo bridged

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10.1016/j.inoche.2008.07.010

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title = "A novel hydroxo-bridged cyclic tetranuclear copper(II) complex using the guanazole ligand: Synthesis, crystal structure and thermal analysis",

abstract = "A novel hydroxo-bridged cyclic tetranuclear copper(II) complex with the guanazole ligand (3,5-diamino-1,2,4-triazole = Hdatrz), [Cu4(datrz)4(µ2-OH)2(NO3) (H2O)6] · (NO3) · 5(H2O) (1) has been synthesised and characterised by X-ray crystallography. In 1, the four copper(II) centres are linked by hydroxo bridges and the N1,N2-coordination of the deprotonated guanazole ligands. The core has considerably short Cu?Cu distances in the range of 3.3550(4)-3.3611(4) {\AA}. Thermal analysis of 1 reveals that the cyclic framework constructed with hydroxo and guanazole ligands is stable up to 285 °C. Crown Copyright {\textcopyright} 2008.",

keywords = "Copper(II) complex, Cyclic tetranuclear, Guanazole ligand, Hydroxo bridged",

author = "Aurkie Ray and Samiran Mitra and Rosair, {Georgina M.}",

year = "2008",

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doi = "10.1016/j.inoche.2008.07.010",

language = "English",

volume = "11",

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journal = "Inorganic Chemistry Communications",

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T1 - A novel hydroxo-bridged cyclic tetranuclear copper(II) complex using the guanazole ligand

T2 - Synthesis, crystal structure and thermal analysis

AU - Ray, Aurkie

AU - Mitra, Samiran

AU - Rosair, Georgina M.

PY - 2008/10

Y1 - 2008/10

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AB - A novel hydroxo-bridged cyclic tetranuclear copper(II) complex with the guanazole ligand (3,5-diamino-1,2,4-triazole = Hdatrz), [Cu4(datrz)4(µ2-OH)2(NO3) (H2O)6] · (NO3) · 5(H2O) (1) has been synthesised and characterised by X-ray crystallography. In 1, the four copper(II) centres are linked by hydroxo bridges and the N1,N2-coordination of the deprotonated guanazole ligands. The core has considerably short Cu?Cu distances in the range of 3.3550(4)-3.3611(4) Å. Thermal analysis of 1 reveals that the cyclic framework constructed with hydroxo and guanazole ligands is stable up to 285 °C. Crown Copyright © 2008.

KW - Copper(II) complex

KW - Cyclic tetranuclear

KW - Guanazole ligand

KW - Hydroxo bridged

U2 - 10.1016/j.inoche.2008.07.010

DO - 10.1016/j.inoche.2008.07.010

M3 - Article

SN - 1387-7003

VL - 11

SP - 1256

EP - 1259

JO - Inorganic Chemistry Communications

JF - Inorganic Chemistry Communications

IS - 10

ER -

A novel hydroxo-bridged cyclic tetranuclear copper(II) complex using the guanazole ligand: Synthesis, crystal structure and thermal analysis

Abstract

Keywords

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