Measuring Self-Association of Pt Complexes by 195 Pt NMR

Alfiya Suleymanova; Oleg Eltsov; Dmitry Kozhevnikov; Anastasia Lantushenko; Maxim Evstigneev; Valery Kozhevnikov

doi:10.1002/slct.201700506

Measuring Self-Association of Pt Complexes by 195 Pt NMR

Alfiya Suleymanova, Oleg Eltsov, Dmitry Kozhevnikov, Anastasia Lantushenko, Maxim Evstigneev, Valery Kozhevnikov

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Abstract

A highly soluble neutral cyclometallated Pt complex of C N N type was prepared and its self-aggregation in CDCl3 solution was studied by NMR dilution method. It was shown that 195Pt NMR can be used to quantify aggregation and therefore be potentially applied to many other Pt complexes. Two-dimensional HMBC 1H-195Pt technique increases sensitivity of experiment and allowed recording 195Pt chemical shift values at concentration as low as 1 mM and it was observed that opposite to shielding of aromatic protons, Pt nucleus is deshielded upon increase of concentration.

Original language	English
Pages (from-to)	3353-3355
Journal	ChemistrySelect
Volume	2
Issue number	11
DOIs	https://doi.org/10.1002/slct.201700506
Publication status	Published - 13 Apr 2017

Keywords

Pt complex
195Pt NMR
self-aggregation

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10.1002/slct.201700506

195Pt comm revAccepted author manuscript, 636 KB

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AU - Suleymanova, Alfiya

AU - Eltsov, Oleg

AU - Kozhevnikov, Dmitry

AU - Lantushenko, Anastasia

AU - Evstigneev, Maxim

AU - Kozhevnikov, Valery

PY - 2017/4/13

Y1 - 2017/4/13

N2 - A highly soluble neutral cyclometallated Pt complex of C N N type was prepared and its self-aggregation in CDCl3 solution was studied by NMR dilution method. It was shown that 195Pt NMR can be used to quantify aggregation and therefore be potentially applied to many other Pt complexes. Two-dimensional HMBC 1H-195Pt technique increases sensitivity of experiment and allowed recording 195Pt chemical shift values at concentration as low as 1 mM and it was observed that opposite to shielding of aromatic protons, Pt nucleus is deshielded upon increase of concentration.

AB - A highly soluble neutral cyclometallated Pt complex of C N N type was prepared and its self-aggregation in CDCl3 solution was studied by NMR dilution method. It was shown that 195Pt NMR can be used to quantify aggregation and therefore be potentially applied to many other Pt complexes. Two-dimensional HMBC 1H-195Pt technique increases sensitivity of experiment and allowed recording 195Pt chemical shift values at concentration as low as 1 mM and it was observed that opposite to shielding of aromatic protons, Pt nucleus is deshielded upon increase of concentration.

KW - Pt complex

KW - 195Pt NMR

KW - self-aggregation

UR - https://www.scopus.com/pages/publications/85041710995

U2 - 10.1002/slct.201700506

DO - 10.1002/slct.201700506

M3 - Article

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VL - 2

SP - 3353

EP - 3355

JO - ChemistrySelect

JF - ChemistrySelect

IS - 11

ER -

Measuring Self-Association of Pt Complexes by 195 Pt NMR

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