Three-coordinate Co(I) provides access to unsaturated dihydrido-Co(III) and seven-coordinate Co(V)

Michael Ingleson; Hongjun Fan; Maren Pink; John Tomaszewski; Kenneth G. Caulton

doi:10.1021/ja0572452

Three-coordinate Co(I) provides access to unsaturated dihydrido-Co(III) and seven-coordinate Co(V)

Michael Ingleson
, Hongjun Fan
, Maren Pink
, John Tomaszewski
, Kenneth G. Caulton

Department of Pathology and Anatomical Sciences

Indiana University Bloomington

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

121 Scopus citations

Abstract

The three-coordinate, T-shaped Co(I) complex, PNPCo (PNP = [(^tBu₂PCH₂SiMe₂)₂N^-], is readily synthesized by magnesium reduction of divalent PNPCoCl. Triplet (S = 1) PNPCo is coordinatively and electronically unsaturated and undergoes a thermally reversible oxidative addition reaction with H2, producing trivalent PNPCo(H)₂. In contrast, the reaction with excess primary silane PhSiH₃ quantitatively generates the base-stabilized silylene Co(V) compound {K²-¹JBu₂PCH₂Me₂SiNSiMe₂CH₂¹Bu₂P(H)Si-}Co(H)₃(SiH₂Ph)₂.

Original language	English
Pages (from-to)	1804-1805
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	128
Issue number	6
DOIs	https://doi.org/10.1021/ja0572452
State	Published - Feb 15 2006

Access to Document

10.1021/ja0572452

Cite this

@article{ce1e0ec978c44673a16fe567b3941e24,

title = "Three-coordinate Co(I) provides access to unsaturated dihydrido-Co(III) and seven-coordinate Co(V)",

abstract = "The three-coordinate, T-shaped Co(I) complex, PNPCo (PNP = [(tBu2PCH2SiMe2)2N-], is readily synthesized by magnesium reduction of divalent PNPCoCl. Triplet (S = 1) PNPCo is coordinatively and electronically unsaturated and undergoes a thermally reversible oxidative addition reaction with H2, producing trivalent PNPCo(H)2. In contrast, the reaction with excess primary silane PhSiH3 quantitatively generates the base-stabilized silylene Co(V) compound \{K2-1JBu2PCH2Me2SiNSiMe2CH21Bu2P(H)Si-\}Co(H)3(SiH2Ph)2.",

author = "Michael Ingleson and Hongjun Fan and Maren Pink and John Tomaszewski and Caulton, \{Kenneth G.\}",

year = "2006",

month = feb,

day = "15",

doi = "10.1021/ja0572452",

language = "English",

volume = "128",

pages = "1804--1805",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "6",

}

TY - JOUR

T1 - Three-coordinate Co(I) provides access to unsaturated dihydrido-Co(III) and seven-coordinate Co(V)

AU - Ingleson, Michael

AU - Fan, Hongjun

AU - Pink, Maren

AU - Tomaszewski, John

AU - Caulton, Kenneth G.

PY - 2006/2/15

Y1 - 2006/2/15

N2 - The three-coordinate, T-shaped Co(I) complex, PNPCo (PNP = [(tBu2PCH2SiMe2)2N-], is readily synthesized by magnesium reduction of divalent PNPCoCl. Triplet (S = 1) PNPCo is coordinatively and electronically unsaturated and undergoes a thermally reversible oxidative addition reaction with H2, producing trivalent PNPCo(H)2. In contrast, the reaction with excess primary silane PhSiH3 quantitatively generates the base-stabilized silylene Co(V) compound {K2-1JBu2PCH2Me2SiNSiMe2CH21Bu2P(H)Si-}Co(H)3(SiH2Ph)2.

AB - The three-coordinate, T-shaped Co(I) complex, PNPCo (PNP = [(tBu2PCH2SiMe2)2N-], is readily synthesized by magnesium reduction of divalent PNPCoCl. Triplet (S = 1) PNPCo is coordinatively and electronically unsaturated and undergoes a thermally reversible oxidative addition reaction with H2, producing trivalent PNPCo(H)2. In contrast, the reaction with excess primary silane PhSiH3 quantitatively generates the base-stabilized silylene Co(V) compound {K2-1JBu2PCH2Me2SiNSiMe2CH21Bu2P(H)Si-}Co(H)3(SiH2Ph)2.

UR - https://www.scopus.com/pages/publications/33244497862

U2 - 10.1021/ja0572452

DO - 10.1021/ja0572452

M3 - Article

AN - SCOPUS:33244497862

SN - 0002-7863

VL - 128

SP - 1804

EP - 1805

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 6

ER -

Three-coordinate Co(I) provides access to unsaturated dihydrido-Co(III) and seven-coordinate Co(V)

Abstract

Access to Document

Other files and links

Fingerprint

Cite this