A series of neutral alkaline earth metal hydride complexes supported by a bulky, unsymmetrical β-diketiminate ligand, [{(Dip/TCHPNacnac)M(μ-H)}2] (M = Mg, Ca, Sr or Ba)

Dominic B. Kennedy; Matthew J. Evans; Dafydd D.L. Jones; Joseph M. Parr; Michael S. Hill; Cameron Jones

doi:10.1039/d4cc04286g

A series of neutral alkaline earth metal hydride complexes supported by a bulky, unsymmetrical β-diketiminate ligand, [{(^Dip/TCHPNacnac)M(μ-H)}₂] (M = Mg, Ca, Sr or Ba)

Dominic B. Kennedy
, Matthew J. Evans
, Dafydd D.L. Jones
, Joseph M. Parr
, Michael S. Hill
, Cameron Jones

School of Chemistry

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

10 Citations (Scopus)

Abstract

A bulky, unsymmetrical β-diketiminate ligand, [HC{MeCN(Dip)}{MeCN(TCHP)}]⁻ (^Dip/TCHPNacnac; Dip = 2,6-diisopropylphenyl, TCHP = 2,4,6-tricyclohexylphenyl), has been utilised in the preparation of a series of magnesium alkyl and calcium, strontium and barium amide complexes. Reaction of these with PhSiH₃ afforded the first complete series of β-diketiminato heavier group 2 metal hydride complexes, [{(^Dip/TCHPNacnac)M(μ-H)}₂] (M = Mg, Ca, Sr or Ba). The unsymmetrical nature of the β-diketiminate ligand seemingly promotes stabilising interactions of ligand Dip groups with the metal centres in the Ca, Sr and Ba hydride complexes.

Original language	English
Pages (from-to)	10894-10897
Number of pages	4
Journal	Chemical Communications
Volume	6
Issue number	78
DOIs	https://doi.org/10.1039/d4cc04286g
Publication status	Published - 7 Oct 2024

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10.1039/d4cc04286g

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@article{23ff390d76c7447693708576eb78eb9c,

title = "A series of neutral alkaline earth metal hydride complexes supported by a bulky, unsymmetrical β-diketiminate ligand, [\{(Dip/TCHPNacnac)M(μ-H)\}2] (M = Mg, Ca, Sr or Ba)",

abstract = "A bulky, unsymmetrical β-diketiminate ligand, [HC\{MeCN(Dip)\}\{MeCN(TCHP)\}]− (Dip/TCHPNacnac; Dip = 2,6-diisopropylphenyl, TCHP = 2,4,6-tricyclohexylphenyl), has been utilised in the preparation of a series of magnesium alkyl and calcium, strontium and barium amide complexes. Reaction of these with PhSiH3 afforded the first complete series of β-diketiminato heavier group 2 metal hydride complexes, [\{(Dip/TCHPNacnac)M(μ-H)\}2] (M = Mg, Ca, Sr or Ba). The unsymmetrical nature of the β-diketiminate ligand seemingly promotes stabilising interactions of ligand Dip groups with the metal centres in the Ca, Sr and Ba hydride complexes.",

author = "Kennedy, \{Dominic B.\} and Evans, \{Matthew J.\} and Jones, \{Dafydd D.L.\} and Parr, \{Joseph M.\} and Hill, \{Michael S.\} and Cameron Jones",

note = "Publisher Copyright: {\textcopyright} 2024 The Royal Society of Chemistry.",

year = "2024",

month = oct,

day = "7",

doi = "10.1039/d4cc04286g",

language = "English",

volume = "6",

pages = "10894--10897",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "The Royal Society of Chemistry",

number = "78",

}

A series of neutral alkaline earth metal hydride complexes supported by a bulky, unsymmetrical β-diketiminate ligand, [{(^Dip/TCHPNacnac)M(μ-H)}₂] (M = Mg, Ca, Sr or Ba). / Kennedy, Dominic B.; Evans, Matthew J.; Jones, Dafydd D.L. et al.
In: Chemical Communications, Vol. 6, No. 78, 07.10.2024, p. 10894-10897.

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

TY - JOUR

T1 - A series of neutral alkaline earth metal hydride complexes supported by a bulky, unsymmetrical β-diketiminate ligand, [{(Dip/TCHPNacnac)M(μ-H)}2] (M = Mg, Ca, Sr or Ba)

AU - Kennedy, Dominic B.

AU - Evans, Matthew J.

AU - Jones, Dafydd D.L.

AU - Parr, Joseph M.

AU - Hill, Michael S.

AU - Jones, Cameron

PY - 2024/10/7

Y1 - 2024/10/7

N2 - A bulky, unsymmetrical β-diketiminate ligand, [HC{MeCN(Dip)}{MeCN(TCHP)}]− (Dip/TCHPNacnac; Dip = 2,6-diisopropylphenyl, TCHP = 2,4,6-tricyclohexylphenyl), has been utilised in the preparation of a series of magnesium alkyl and calcium, strontium and barium amide complexes. Reaction of these with PhSiH3 afforded the first complete series of β-diketiminato heavier group 2 metal hydride complexes, [{(Dip/TCHPNacnac)M(μ-H)}2] (M = Mg, Ca, Sr or Ba). The unsymmetrical nature of the β-diketiminate ligand seemingly promotes stabilising interactions of ligand Dip groups with the metal centres in the Ca, Sr and Ba hydride complexes.

AB - A bulky, unsymmetrical β-diketiminate ligand, [HC{MeCN(Dip)}{MeCN(TCHP)}]− (Dip/TCHPNacnac; Dip = 2,6-diisopropylphenyl, TCHP = 2,4,6-tricyclohexylphenyl), has been utilised in the preparation of a series of magnesium alkyl and calcium, strontium and barium amide complexes. Reaction of these with PhSiH3 afforded the first complete series of β-diketiminato heavier group 2 metal hydride complexes, [{(Dip/TCHPNacnac)M(μ-H)}2] (M = Mg, Ca, Sr or Ba). The unsymmetrical nature of the β-diketiminate ligand seemingly promotes stabilising interactions of ligand Dip groups with the metal centres in the Ca, Sr and Ba hydride complexes.

UR - https://www.scopus.com/pages/publications/85204132089

U2 - 10.1039/d4cc04286g

DO - 10.1039/d4cc04286g

M3 - Article

C2 - 39253901

AN - SCOPUS:85204132089

SN - 1359-7345

VL - 6

SP - 10894

EP - 10897

JO - Chemical Communications

JF - Chemical Communications

IS - 78

ER -

A series of neutral alkaline earth metal hydride complexes supported by a bulky, unsymmetrical β-diketiminate ligand, [{(Dip/TCHPNacnac)M(μ-H)}2] (M = Mg, Ca, Sr or Ba)

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A series of neutral alkaline earth metal hydride complexes supported by a bulky, unsymmetrical β-diketiminate ligand, [{(^Dip/TCHPNacnac)M(μ-H)}₂] (M = Mg, Ca, Sr or Ba)