Platinum(II)-mediated Aminonitrone–Isocyanide Interplay: A New Route to Acyclic Diaminocarbene Complexes

Research output

Abstract

The complex cis-[PtCl2(Me2SO)2] (1) reacts with 1equiv. of C-4-trifluoromethylphenyl-N-methylaminonitrone(2) to give the product [PtCl(Me2SO){ON(Me)C(4-CF3C6H4)NH}] (3; 75%). Treatment of 3 with an excess cyclohexyl isocyanide, CyNC, leads to the acyclic diaminocarbene complex [PtCl(CNCy){N(Me)C(4-CF3C6H4)NC(=NHCy)}] (4; 28%). The latter exhibits solid-state phosphorescence with an emission maximum at 600nm and 23% quantum yield. Complexes 3 and 4 were characterized by HRESI+-MS, FTIR, 1H and 13C{1H}NMR spectroscopic techniques. The complex 4 was additionally characterized by X-ray diffraction; short Pt•••Pt contacts (3.2360(5)Å) were observed in the crystal structure. These non-covalent interactions have an attractive nature and their estimated strength is 4.6–5.6 kcal/mol.
Original languageRussian
JournalInorganica Chimica Acta
DOIs
Publication statusPublished - 2019

Cite this

@article{9e3844df17c84b5bbbd479826efd5086,
title = "Platinum(II)-mediated Aminonitrone–Isocyanide Interplay: A New Route to Acyclic Diaminocarbene Complexes",
abstract = "The complex cis-[PtCl2(Me2SO)2] (1) reacts with 1equiv. of C-4-trifluoromethylphenyl-N-methylaminonitrone(2) to give the product [PtCl(Me2SO){ON(Me)C(4-CF3C6H4)NH}] (3; 75{\%}). Treatment of 3 with an excess cyclohexyl isocyanide, CyNC, leads to the acyclic diaminocarbene complex [PtCl(CNCy){N(Me)C(4-CF3C6H4)NC(=NHCy)}] (4; 28{\%}). The latter exhibits solid-state phosphorescence with an emission maximum at 600nm and 23{\%} quantum yield. Complexes 3 and 4 were characterized by HRESI+-MS, FTIR, 1H and 13C{1H}NMR spectroscopic techniques. The complex 4 was additionally characterized by X-ray diffraction; short Pt•••Pt contacts (3.2360(5){\AA}) were observed in the crystal structure. These non-covalent interactions have an attractive nature and their estimated strength is 4.6–5.6 kcal/mol.",
keywords = "Platinum(II) complex, Aminonitrone, Isocyanide, Luminescence, Metallophilic interactions",
author = "Il'in, {Mikhail V.} and Bolotin, {Dmitrii S.} and Novikov, {Alexander S.} and Kolesnikov, {Ilya E.} and Suslonov, {Vitalii V.}",
year = "2019",
doi = "10.1016/j.ica.2019.03.026",
language = "русский",
journal = "Inorganica Chimica Acta",
issn = "0020-1693",
publisher = "Elsevier",

}

TY - JOUR

T1 - Platinum(II)-mediated Aminonitrone–Isocyanide Interplay: A New Route to Acyclic Diaminocarbene Complexes

AU - Il'in, Mikhail V.

AU - Bolotin, Dmitrii S.

AU - Novikov, Alexander S.

AU - Kolesnikov, Ilya E.

AU - Suslonov, Vitalii V.

PY - 2019

Y1 - 2019

N2 - The complex cis-[PtCl2(Me2SO)2] (1) reacts with 1equiv. of C-4-trifluoromethylphenyl-N-methylaminonitrone(2) to give the product [PtCl(Me2SO){ON(Me)C(4-CF3C6H4)NH}] (3; 75%). Treatment of 3 with an excess cyclohexyl isocyanide, CyNC, leads to the acyclic diaminocarbene complex [PtCl(CNCy){N(Me)C(4-CF3C6H4)NC(=NHCy)}] (4; 28%). The latter exhibits solid-state phosphorescence with an emission maximum at 600nm and 23% quantum yield. Complexes 3 and 4 were characterized by HRESI+-MS, FTIR, 1H and 13C{1H}NMR spectroscopic techniques. The complex 4 was additionally characterized by X-ray diffraction; short Pt•••Pt contacts (3.2360(5)Å) were observed in the crystal structure. These non-covalent interactions have an attractive nature and their estimated strength is 4.6–5.6 kcal/mol.

AB - The complex cis-[PtCl2(Me2SO)2] (1) reacts with 1equiv. of C-4-trifluoromethylphenyl-N-methylaminonitrone(2) to give the product [PtCl(Me2SO){ON(Me)C(4-CF3C6H4)NH}] (3; 75%). Treatment of 3 with an excess cyclohexyl isocyanide, CyNC, leads to the acyclic diaminocarbene complex [PtCl(CNCy){N(Me)C(4-CF3C6H4)NC(=NHCy)}] (4; 28%). The latter exhibits solid-state phosphorescence with an emission maximum at 600nm and 23% quantum yield. Complexes 3 and 4 were characterized by HRESI+-MS, FTIR, 1H and 13C{1H}NMR spectroscopic techniques. The complex 4 was additionally characterized by X-ray diffraction; short Pt•••Pt contacts (3.2360(5)Å) were observed in the crystal structure. These non-covalent interactions have an attractive nature and their estimated strength is 4.6–5.6 kcal/mol.

KW - Platinum(II) complex

KW - Aminonitrone

KW - Isocyanide

KW - Luminescence

KW - Metallophilic interactions

U2 - 10.1016/j.ica.2019.03.026

DO - 10.1016/j.ica.2019.03.026

M3 - статья

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

SN - 0020-1693

ER -