Catalyzed autoxidation of azide by cobalt(II) (2,3,9,10-tetramethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene)2+

Ela Solomon-Rapaport; Alexandra Masarwa; Haim Cohen; Dan Meyerstein

doi:10.1016/s0020-1693(00)00188-2

Catalyzed autoxidation of azide by cobalt(II) (2,3,9,10-tetramethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene)²⁺

Ela Solomon-Rapaport, Alexandra Masarwa, Haim Cohen, Dan Meyerstein

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

Abstract

The catalytic autoxidation of azide by Co(tim)²⁺ was studied. In the presence of dioxygen Co(tim)(H₂O)₂²⁺ (tim = 2,3,9,10-tetramethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene) reacts with azide in a complex process to produce Co(tim)(N₃)(x)/((3-x))⁺ (x = 1 or 2) (λ(max) at 340 nm) and dinitrogen. The reaction is clearly catalytic with up to several hundred turnovers. The dioxygen dependence of the reaction implies the involvement of an oxygen adduct, stabilized by an axial azide ligand. (C) 2000 Elsevier Science S.A.

Original language	English
Pages (from-to)	42-47
Number of pages	6
Journal	Inorganica Chimica Acta
Volume	307
Issue number	1-2
DOIs	https://doi.org/10.1016/s0020-1693(00)00188-2
State	Published - 11 Sep 2000
Externally published	Yes

Bibliographical note

Funding Information:
This study was supported in part by a grant from the Budgeting and Planning Committee of The Council of Higher Education and the Israel Atomic Energy Commission. D.M. wishes to express his thanks to Mrs Irene Evens for her ongoing interest and support.

Keywords

Azamacrocyle complexes
Azide
Catalyzed autoxidation
Cobalt complexes
Dioxygen

Access to Document

10.1016/s0020-1693(00)00188-2

Cite this

@article{02eb82437da4404e9a84f3b9c7b22567,

title = "Catalyzed autoxidation of azide by cobalt(II) (2,3,9,10-tetramethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene)2+",

abstract = "The catalytic autoxidation of azide by Co(tim)2+ was studied. In the presence of dioxygen Co(tim)(H2O)22+ (tim = 2,3,9,10-tetramethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene) reacts with azide in a complex process to produce Co(tim)(N3)(x)/((3-x))+ (x = 1 or 2) (λ(max) at 340 nm) and dinitrogen. The reaction is clearly catalytic with up to several hundred turnovers. The dioxygen dependence of the reaction implies the involvement of an oxygen adduct, stabilized by an axial azide ligand. (C) 2000 Elsevier Science S.A.",

keywords = "Azamacrocyle complexes, Azide, Catalyzed autoxidation, Cobalt complexes, Dioxygen",

author = "Ela Solomon-Rapaport and Alexandra Masarwa and Haim Cohen and Dan Meyerstein",

note = "Funding Information: This study was supported in part by a grant from the Budgeting and Planning Committee of The Council of Higher Education and the Israel Atomic Energy Commission. D.M. wishes to express his thanks to Mrs Irene Evens for her ongoing interest and support.",

year = "2000",

month = sep,

day = "11",

doi = "10.1016/s0020-1693(00)00188-2",

language = "אנגלית",

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journal = "Inorganica Chimica Acta",

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T1 - Catalyzed autoxidation of azide by cobalt(II) (2,3,9,10-tetramethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene)2+

AU - Solomon-Rapaport, Ela

AU - Masarwa, Alexandra

AU - Cohen, Haim

AU - Meyerstein, Dan

N1 - Funding Information: This study was supported in part by a grant from the Budgeting and Planning Committee of The Council of Higher Education and the Israel Atomic Energy Commission. D.M. wishes to express his thanks to Mrs Irene Evens for her ongoing interest and support.

PY - 2000/9/11

Y1 - 2000/9/11

N2 - The catalytic autoxidation of azide by Co(tim)2+ was studied. In the presence of dioxygen Co(tim)(H2O)22+ (tim = 2,3,9,10-tetramethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene) reacts with azide in a complex process to produce Co(tim)(N3)(x)/((3-x))+ (x = 1 or 2) (λ(max) at 340 nm) and dinitrogen. The reaction is clearly catalytic with up to several hundred turnovers. The dioxygen dependence of the reaction implies the involvement of an oxygen adduct, stabilized by an axial azide ligand. (C) 2000 Elsevier Science S.A.

AB - The catalytic autoxidation of azide by Co(tim)2+ was studied. In the presence of dioxygen Co(tim)(H2O)22+ (tim = 2,3,9,10-tetramethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene) reacts with azide in a complex process to produce Co(tim)(N3)(x)/((3-x))+ (x = 1 or 2) (λ(max) at 340 nm) and dinitrogen. The reaction is clearly catalytic with up to several hundred turnovers. The dioxygen dependence of the reaction implies the involvement of an oxygen adduct, stabilized by an axial azide ligand. (C) 2000 Elsevier Science S.A.

KW - Azamacrocyle complexes

KW - Azide

KW - Catalyzed autoxidation

KW - Cobalt complexes

KW - Dioxygen

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