Platinum(II) complexes containing the 3,3-dimethylglutarimidate ligand

Ashwin Gopalan Nair; Oguejiofo T. Ujam; Joseph R. Lane; William Henderson; Brian K. Nicholson

doi:10.1080/00958972.2012.722627

Platinum(II) complexes containing the 3,3-dimethylglutarimidate ligand

Ashwin Gopalan Nair, Oguejiofo T. Ujam, Joseph R. Lane, William Henderson^*, Brian K. Nicholson

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

Reaction of cis-[PtCl ₂(PPh ₃) ₂] with excess 3,3-dimethylglutarimide (dmgH) and sodium chloride in refluxing methanol gives the mono-imidate complex cis-[PtCl(dmg)(PPh ₃) ₂], which was structurally characterized. The plane of the imidate ligand is approximately perpendicular to the platinum coordination plane which, coupled with restricted rotation about the Pt-N bond, results in inequivalent methyl groups and CH2 protons of the dmg ligand in the room temperature ¹H NMR spectrum. These observations were corroborated by a theoretical study using density functional theory methods. The analogous bromide complex cis-[PtBr(dmg)(PPh ₃) ₂] can be prepared by replacing NaCl with NaBr in the reaction mixture.

Original language	English
Pages (from-to)	3731-3739
Number of pages	9
Journal	Journal of Coordination Chemistry
Volume	65
Issue number	21
DOIs	https://doi.org/10.1080/00958972.2012.722627
Publication status	Published - 10 Nov 2012
Externally published	Yes

Keywords

Crystal structure
Imidate complexes
Platinum complexes
Theoretical calculations

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10.1080/00958972.2012.722627

Cite this

@article{f967e84c87a04ab7ac27ec65d1a7f219,

title = "Platinum(II) complexes containing the 3,3-dimethylglutarimidate ligand",

abstract = "Reaction of cis-[PtCl 2(PPh 3) 2] with excess 3,3-dimethylglutarimide (dmgH) and sodium chloride in refluxing methanol gives the mono-imidate complex cis-[PtCl(dmg)(PPh 3) 2], which was structurally characterized. The plane of the imidate ligand is approximately perpendicular to the platinum coordination plane which, coupled with restricted rotation about the Pt-N bond, results in inequivalent methyl groups and CH2 protons of the dmg ligand in the room temperature 1H NMR spectrum. These observations were corroborated by a theoretical study using density functional theory methods. The analogous bromide complex cis-[PtBr(dmg)(PPh 3) 2] can be prepared by replacing NaCl with NaBr in the reaction mixture.",

keywords = "Crystal structure, Imidate complexes, Platinum complexes, Theoretical calculations",

author = "Nair, {Ashwin Gopalan} and Ujam, {Oguejiofo T.} and Lane, {Joseph R.} and William Henderson and Nicholson, {Brian K.}",

year = "2012",

month = nov,

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doi = "10.1080/00958972.2012.722627",

language = "English",

volume = "65",

pages = "3731--3739",

journal = "Journal of Coordination Chemistry",

issn = "0095-8972",

publisher = "Gordon Breach Science Publishing",

number = "21",

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TY - JOUR

T1 - Platinum(II) complexes containing the 3,3-dimethylglutarimidate ligand

AU - Nair, Ashwin Gopalan

AU - Ujam, Oguejiofo T.

AU - Lane, Joseph R.

AU - Henderson, William

AU - Nicholson, Brian K.

PY - 2012/11/10

Y1 - 2012/11/10

N2 - Reaction of cis-[PtCl 2(PPh 3) 2] with excess 3,3-dimethylglutarimide (dmgH) and sodium chloride in refluxing methanol gives the mono-imidate complex cis-[PtCl(dmg)(PPh 3) 2], which was structurally characterized. The plane of the imidate ligand is approximately perpendicular to the platinum coordination plane which, coupled with restricted rotation about the Pt-N bond, results in inequivalent methyl groups and CH2 protons of the dmg ligand in the room temperature 1H NMR spectrum. These observations were corroborated by a theoretical study using density functional theory methods. The analogous bromide complex cis-[PtBr(dmg)(PPh 3) 2] can be prepared by replacing NaCl with NaBr in the reaction mixture.

AB - Reaction of cis-[PtCl 2(PPh 3) 2] with excess 3,3-dimethylglutarimide (dmgH) and sodium chloride in refluxing methanol gives the mono-imidate complex cis-[PtCl(dmg)(PPh 3) 2], which was structurally characterized. The plane of the imidate ligand is approximately perpendicular to the platinum coordination plane which, coupled with restricted rotation about the Pt-N bond, results in inequivalent methyl groups and CH2 protons of the dmg ligand in the room temperature 1H NMR spectrum. These observations were corroborated by a theoretical study using density functional theory methods. The analogous bromide complex cis-[PtBr(dmg)(PPh 3) 2] can be prepared by replacing NaCl with NaBr in the reaction mixture.

KW - Crystal structure

KW - Imidate complexes

KW - Platinum complexes

KW - Theoretical calculations

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U2 - 10.1080/00958972.2012.722627

DO - 10.1080/00958972.2012.722627

M3 - Article

AN - SCOPUS:84867068009

SN - 0095-8972

VL - 65

SP - 3731

EP - 3739

JO - Journal of Coordination Chemistry

JF - Journal of Coordination Chemistry

IS - 21

ER -

Platinum(II) complexes containing the 3,3-dimethylglutarimidate ligand

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Keywords

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