Structures and bonding of homoleptic bis(2,3-dihydro-1,3-diborole) complexes of nickel and platinum

Homoleptic metal complexes of the boron heterocycle 2,3-dihydro-1,3-diborole {(R1C)2(R2B)2R3(H)C} 1 are described. X-Ray crystal structure determinations of two nickel and platinum derivatives are presented. In the nickel complex [Ni(1d)2] 6d (R1 = R2 = R3 = Et) the essentially coplanar heterocycles...

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Bibliographic Details
Main Authors: Wadepohl, Hubert (Author) , Krüger, Carl (Author) , Siebert, Walter (Author)
Format: Article (Journal)
Language:English
Published: 22 June 2015
In: Journal of organometallic chemistry
Year: 2015, Volume: 798, Pages: 146-151
ISSN:1872-8561
DOI:10.1016/j.jorganchem.2015.06.014
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.jorganchem.2015.06.014
Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0022328X15300413
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Author Notes:Hubert Wadepohl, Carl Krüger, Walter Siebert
Description
Summary:Homoleptic metal complexes of the boron heterocycle 2,3-dihydro-1,3-diborole {(R1C)2(R2B)2R3(H)C} 1 are described. X-Ray crystal structure determinations of two nickel and platinum derivatives are presented. In the nickel complex [Ni(1d)2] 6d (R1 = R2 = R3 = Et) the essentially coplanar heterocycles attain a pentahapto coordination mode with a gauche orientation with respect to one another. An 18 VE count is attained. In contrast, in the 14 VE platinum complex [Pt(1a)2] 4a (R1 = R2 = Et, R3 = Me) the ligands are strongly folded and adopt a tetrahapto coordination. The molecule is centrosymmetric in the crystalline state. DFT MO calculations are presented to establish the relative stabilities of these coordination modes for nickel and platinum, respectively.
Item Description:Gesehen am 26.06.2020
Physical Description:Online Resource
ISSN:1872-8561
DOI:10.1016/j.jorganchem.2015.06.014