Carbon-13 N.m.r. and I.r. Studies of copper(I) complexes of the - NHCS group in five- and six-membered heterocyclic rings

Anvarhusein A. Isab; M. Sakhawat Hussain

doi:10.1007/BF00620651

Carbon-13 N.m.r. and I.r. Studies of copper(I) complexes of the - NHCS group in five- and six-membered heterocyclic rings

Anvarhusein A. Isab^*
, M. Sakhawat Hussain

^*Corresponding author for this work

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

19 Scopus citations

Abstract

Crystalline copper(I) complexes of the general formula [LCuCl] and [L₂CuCl] were prepared for imidazolidine-2-thiones and 1,3-diazinane-2-thiones by the reduction of copper(II) halides with an excess of the ligands. The¹³C n.m.r. and i.r. spectra of these complexes are consistent with thione sulphur (ligand) donation in all cases. The magnitude of the high-field shift in the¹³C resonance of the thioureide carbon in the complexes as compared with that of the free ligands is interpreted in terms of coordination geometry around the metal atoms. A comparison of the chemical shifts for gold(I), silver(I) and copper(I) revealed a displacement of ca. 6-8 ppm for the mono- and 2-4 ppm for the bis-complexes, respectively.

Original language	English
Pages (from-to)	298-301
Number of pages	4
Journal	Transition Metal Chemistry
Volume	11
Issue number	8
DOIs	https://doi.org/10.1007/BF00620651
State	Published - Aug 1986

ASJC Scopus subject areas

Inorganic Chemistry
Metals and Alloys
Materials Chemistry

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title = "Carbon-13 N.m.r. and I.r. Studies of copper(I) complexes of the - NHCS group in five- and six-membered heterocyclic rings",

abstract = "Crystalline copper(I) complexes of the general formula [LCuCl] and [L2CuCl] were prepared for imidazolidine-2-thiones and 1,3-diazinane-2-thiones by the reduction of copper(II) halides with an excess of the ligands. The13C n.m.r. and i.r. spectra of these complexes are consistent with thione sulphur (ligand) donation in all cases. The magnitude of the high-field shift in the13C resonance of the thioureide carbon in the complexes as compared with that of the free ligands is interpreted in terms of coordination geometry around the metal atoms. A comparison of the chemical shifts for gold(I), silver(I) and copper(I) revealed a displacement of ca. 6-8 ppm for the mono- and 2-4 ppm for the bis-complexes, respectively.",

author = "Isab, \{Anvarhusein A.\} and Hussain, \{M. Sakhawat\}",

year = "1986",

month = aug,

doi = "10.1007/BF00620651",

language = "English",

volume = "11",

pages = "298--301",

journal = "Transition Metal Chemistry",

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TY - JOUR

T1 - Carbon-13 N.m.r. and I.r. Studies of copper(I) complexes of the - NHCS group in five- and six-membered heterocyclic rings

AU - Isab, Anvarhusein A.

AU - Hussain, M. Sakhawat

PY - 1986/8

Y1 - 1986/8

N2 - Crystalline copper(I) complexes of the general formula [LCuCl] and [L2CuCl] were prepared for imidazolidine-2-thiones and 1,3-diazinane-2-thiones by the reduction of copper(II) halides with an excess of the ligands. The13C n.m.r. and i.r. spectra of these complexes are consistent with thione sulphur (ligand) donation in all cases. The magnitude of the high-field shift in the13C resonance of the thioureide carbon in the complexes as compared with that of the free ligands is interpreted in terms of coordination geometry around the metal atoms. A comparison of the chemical shifts for gold(I), silver(I) and copper(I) revealed a displacement of ca. 6-8 ppm for the mono- and 2-4 ppm for the bis-complexes, respectively.

AB - Crystalline copper(I) complexes of the general formula [LCuCl] and [L2CuCl] were prepared for imidazolidine-2-thiones and 1,3-diazinane-2-thiones by the reduction of copper(II) halides with an excess of the ligands. The13C n.m.r. and i.r. spectra of these complexes are consistent with thione sulphur (ligand) donation in all cases. The magnitude of the high-field shift in the13C resonance of the thioureide carbon in the complexes as compared with that of the free ligands is interpreted in terms of coordination geometry around the metal atoms. A comparison of the chemical shifts for gold(I), silver(I) and copper(I) revealed a displacement of ca. 6-8 ppm for the mono- and 2-4 ppm for the bis-complexes, respectively.

UR - https://www.scopus.com/pages/publications/0001600723

U2 - 10.1007/BF00620651

DO - 10.1007/BF00620651

M3 - Article

AN - SCOPUS:0001600723

SN - 0340-4285

VL - 11

SP - 298

EP - 301

JO - Transition Metal Chemistry

JF - Transition Metal Chemistry

IS - 8

ER -

Carbon-13 N.m.r. and I.r. Studies of copper(I) complexes of the - NHCS group in five- and six-membered heterocyclic rings

Abstract

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