Acyclic Diaminocarbene Platinum(IV) Complexes Synthesized by the Oxidative Addition of MeI and I<sub>2</sub>

Katkova, S. A

doi:10.31857/S0132344X24050047

PII

10.31857/S0132344X24050047-1

DOI

10.31857/S0132344X24050047

Publication type

Article

Status

Published

Authors

S. A Katkova

Affiliation: Saint Petersburg State University

Volume/ Edition

Volume 50 / Issue number 5

Pages

322-333

Abstract

The oxidative addition of methyl iodide or molecular iodine to the bis(С,N-chelate) deprotonated diaminocarbene platinum(II) complexes [Pt{C(N(H)Ar)(NC(N(H)Ph)N(Ph)}₂] (Ar = C₆H₃-2,6-Me₂ (Xyl), C₆H₂-2,4,6-Me₃ (Mes), and C₆H₄-4-Me (pTol)) affords the corresponding platinum(IV) derivatives in a yield of 89–99%. The addition of CF3CO2H is accompanied by the protonation of the nitrogen atoms of the diaminocarbene fragment to form the cationic complexes [[PtI(X)-{C(N(H)Ar)(NC(N(H)Ph)N(Ph)}₂]CF₃CO₂H (X = Me, I). The structures of the compounds are determined by elemental analysis; high resolution mass spectrometry with electrospray ionization (ESI HRMS); IR spectroscopy; ¹H, ¹³C{1H}, ¹⁹F{1H}, and ¹⁹⁵Pt{¹H} NMR spectroscopy; 2D NMR spectroscopy (¹H,¹Н COSY, ¹H,¹Н NOESY, ¹H,¹³C HSQC, ¹H,¹³C HMBC, ¹H,¹⁵N HSQC, ¹H,¹⁵N HMBC), and X-ray diffraction (XRD) and thermogravimetric analyses. The synthesized platinum(IV) complexes are thermally stable to 200–260°C and are electroneutral molecules with the octahedral coordination sphere formed by two deprotonated diaminocarbene C,N-chelate substituents and iodine and methyl or two iodine atoms localized in the apical positions.

Keywords

комплексы платины ациклические диаминокарбеновые лиганды окислительное присоединение протонирование

Date of publication

15.05.2024

Year of publication

2024

Number of purchasers

Views

References

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GOST	Katkova S. Acyclic Diaminocarbene Platinum(IV) Complexes Synthesized by the Oxidative Addition of MeI and I₂ // Russian Journal of Coordination Chemistry. – 2024. – V. 50. – Issue number 5 C. 322-333 . URL: https://coordchemras.ru/10-31857-s0132344x24050047-1/?version_id=117186. DOI: 10.31857/S0132344X24050047
MLA	Katkova, S. A "Acyclic Diaminocarbene Platinum(IV) Complexes Synthesized by the Oxidative Addition of MeI and I₂." Russian Journal of Coordination Chemistry. 50.5 (2024).:322-333. DOI: 10.31857/S0132344X24050047
APA	Katkova S. (2024). Acyclic Diaminocarbene Platinum(IV) Complexes Synthesized by the Oxidative Addition of MeI and I₂. Russian Journal of Coordination Chemistry. vol. 50, no. 5, pp.322-333 DOI: 10.31857/S0132344X24050047

RAS Chemistry & Material ScienceКоординационная химия Russian Journal of Coordination Chemistry

Acyclic Diaminocarbene Platinum(IV) Complexes Synthesized by the Oxidative Addition of MeI and I₂

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Acyclic Diaminocarbene Platinum(IV) Complexes Synthesized by the Oxidative Addition of MeI and I2

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Acyclic Diaminocarbene Platinum(IV) Complexes Synthesized by the Oxidative Addition of MeI and I₂