Synthesis and structures of alkynylchlorocyclotriphosphazenes and their cluster-forming reactions with octacarbonyldicobalt

Takashi Komuro; Kenichi Mori; Hiromi Tobita

doi:10.3987/COM-08-S(F)96

Synthesis and structures of alkynylchlorocyclotriphosphazenes and their cluster-forming reactions with octacarbonyldicobalt

Takashi Komuro, Kenichi Mori, Hiromi Tobita

Tohoku University

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

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Abstract

Cyclotriphosphazenes having p-tolylethynyl and chloro substituents N ₃P₃C≡C(p-Tol)_n,Cl_6-n (1a: n = 2, 1b: n = 4; p-Tol = p-tolyl) were synthesized by the reaction of hexachlorocyclotriphosphazene (NPC1₂)₃ with 2 equiv of LiC≡C(p-Tol) in THF. 1a and 1b were characterized by spectroscopic methods and elemental analyses. The reactions of 1a and 1b with octacarbonyldicobalt Co₂(CO)₈ produced cobalt clusters containing tetrahedral C₂Co₂(CO)₆(p-Tol) cluster units; namely, tetranuclear cluster N₃P₃ C₂Co ₂(CO)₆(p-Tol)₂Cl₄ (2) and hexanuclear cluster N₃P₃C₂Co ₂(CO)₆(p-Tol)₃C≡C(p-Tol)Cl₂ (3). Crystal structures of 1a and 2 were determined by X-ray crystallography.

Original language	English
Pages (from-to)	1171-1183
Number of pages	13
Journal	Heterocycles
Volume	77
Issue number	2
DOIs	https://doi.org/10.3987/COM-08-S(F)96
Publication status	Published - 2009 Feb 1

Keywords

Alkynyl Substituent
Cobalt Cluster
Crystal Structure
Cyclotriphosphazene
Multidentate Ligand

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title = "Synthesis and structures of alkynylchlorocyclotriphosphazenes and their cluster-forming reactions with octacarbonyldicobalt",

abstract = "Cyclotriphosphazenes having p-tolylethynyl and chloro substituents N 3P3C≡C(p-Tol)n,Cl6-n (1a: n = 2, 1b: n = 4; p-Tol = p-tolyl) were synthesized by the reaction of hexachlorocyclotriphosphazene (NPC12)3 with 2 equiv of LiC≡C(p-Tol) in THF. 1a and 1b were characterized by spectroscopic methods and elemental analyses. The reactions of 1a and 1b with octacarbonyldicobalt Co2(CO)8 produced cobalt clusters containing tetrahedral C2Co2(CO)6(p-Tol) cluster units; namely, tetranuclear cluster N3P3 C2Co 2(CO)6(p-Tol)2Cl4 (2) and hexanuclear cluster N3P3C2Co 2(CO)6(p-Tol)3C≡C(p-Tol)Cl2 (3). Crystal structures of 1a and 2 were determined by X-ray crystallography.",

keywords = "Alkynyl Substituent, Cobalt Cluster, Crystal Structure, Cyclotriphosphazene, Multidentate Ligand",

author = "Takashi Komuro and Kenichi Mori and Hiromi Tobita",

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doi = "10.3987/COM-08-S(F)96",

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AU - Komuro, Takashi

AU - Mori, Kenichi

AU - Tobita, Hiromi

PY - 2009/2/1

Y1 - 2009/2/1

N2 - Cyclotriphosphazenes having p-tolylethynyl and chloro substituents N 3P3C≡C(p-Tol)n,Cl6-n (1a: n = 2, 1b: n = 4; p-Tol = p-tolyl) were synthesized by the reaction of hexachlorocyclotriphosphazene (NPC12)3 with 2 equiv of LiC≡C(p-Tol) in THF. 1a and 1b were characterized by spectroscopic methods and elemental analyses. The reactions of 1a and 1b with octacarbonyldicobalt Co2(CO)8 produced cobalt clusters containing tetrahedral C2Co2(CO)6(p-Tol) cluster units; namely, tetranuclear cluster N3P3 C2Co 2(CO)6(p-Tol)2Cl4 (2) and hexanuclear cluster N3P3C2Co 2(CO)6(p-Tol)3C≡C(p-Tol)Cl2 (3). Crystal structures of 1a and 2 were determined by X-ray crystallography.

AB - Cyclotriphosphazenes having p-tolylethynyl and chloro substituents N 3P3C≡C(p-Tol)n,Cl6-n (1a: n = 2, 1b: n = 4; p-Tol = p-tolyl) were synthesized by the reaction of hexachlorocyclotriphosphazene (NPC12)3 with 2 equiv of LiC≡C(p-Tol) in THF. 1a and 1b were characterized by spectroscopic methods and elemental analyses. The reactions of 1a and 1b with octacarbonyldicobalt Co2(CO)8 produced cobalt clusters containing tetrahedral C2Co2(CO)6(p-Tol) cluster units; namely, tetranuclear cluster N3P3 C2Co 2(CO)6(p-Tol)2Cl4 (2) and hexanuclear cluster N3P3C2Co 2(CO)6(p-Tol)3C≡C(p-Tol)Cl2 (3). Crystal structures of 1a and 2 were determined by X-ray crystallography.

KW - Alkynyl Substituent

KW - Cobalt Cluster

KW - Crystal Structure

KW - Cyclotriphosphazene

KW - Multidentate Ligand

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Synthesis and structures of alkynylchlorocyclotriphosphazenes and their cluster-forming reactions with octacarbonyldicobalt

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