MEASURING SELF-ASSOCIATION OF PT-COMPLEXES BY 195PT NMR
Authors:
1.
Sevastopol State University
2.
Sevastopol State University
3.
Sevastopol State University
4.
Sevastopol State University
5.
Northumbria University
6.
Ural Federal University
Type:
Article
Pages:
from 365
to 368
Status:
Published
Received:
20.06.2017
Accepted:
20.06.2017
Published:
25.06.2017
Subject area:
UDK 577 Материальные основы жизни. Биохимия. Молекулярная биология.Биофизика
Language:
Russian
Keywords:
Pt complex, 195Pt NMR, self-aggregation
Abstract (English):
Neutral cyclometallated Pt complex of CNN 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 1mM and it was observed that opposite to shielding of aromatic protons, Pt nucleus is deshielded upon increase of concentration.
Neutral cyclometallated Pt complex of CNN 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 1mM and it was observed that opposite to shielding of aromatic protons, Pt nucleus is deshielded upon increase of concentration.
Keywords:
Pt complex, 195Pt NMR, self-aggregation
Pt complex, 195Pt NMR, self-aggregation
1. Suleymanova A.F., Eltsov O.S., Kozhevnikov D.N., Lantushenko A.O., Evstigneev M.P., Kozhevnikov V.N. ShemistrySelect, 2017, vol. 2, p. 3353.
