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Cationic Complexes of 3a,6a-Diaza-1,4-diphosphapentalenes
- Authors: Sushev V.V.1, Panova Y.S.1, Khristolyubova A.V.1, Zolotareva N.V.1, Grishin M.D.1, Baranov E.V.1, Fukin G.K.1, Kornev A.N.1
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Affiliations:
- Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia
- Issue: Vol 49, No 4 (2023)
- Pages: 217-228
- Section: Articles
- URL: https://journal-vniispk.ru/0132-344X/article/view/137272
- DOI: https://doi.org/10.31857/S0132344X23700214
- EDN: https://elibrary.ru/CXIBGQ
- ID: 137272
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Abstract
The reactions of annulated 1,4-dichloro-3a,6a-diaza-1,4-diphosphapentalenes (DDPCl2) with 1 equiv. of trimethylsilyl triflate (TMSOTf) lead to replacement of one chlorine atom with the triflate group, thus giving cationic diazadiphosphapentalenes [ClDDP]+[TfO]−. In the presence of 2 equiv. of TMSOTf and 2 equiv. of 4‑dimethylaminopyridine (DMAP), the DDP dication stabilized by two DMAP molecules, [DDP(DMAP)2]2+[(CF3SO3)−]2, is formed. The DMAP molecules are located on one side of the DDP skeleton and lie in parallel planes. Free diazadiphosphapentalene was detected in solutions of [DDP(DMAP)2]2+[(CF3SO3)−]2 in CH2Cl2 by UV-Vis spectroscopy and CV. This implies that this compound disproportionates under these conditions; it is unstable in dilute solutions and decomposes to give [DMAP∙HOTf] in a quantitative yield. Crystallographic data for the obtained compounds: CCDC nos. 2182881–2182883.
About the authors
V. V. Sushev
Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia
Email: akornev@iomc.ras.ru
Россия, Нижний Новгород
Yu. S. Panova
Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia
Email: akornev@iomc.ras.ru
Россия, Нижний Новгород
A. V. Khristolyubova
Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia
Email: akornev@iomc.ras.ru
Россия, Нижний Новгород
N. V. Zolotareva
Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia
Email: akornev@iomc.ras.ru
Россия, Нижний Новгород
M. D. Grishin
Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia
Email: akornev@iomc.ras.ru
Россия, Нижний Новгород
E. V. Baranov
Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia
Email: akornev@iomc.ras.ru
Россия, Нижний Новгород
G. K. Fukin
Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia
Email: akornev@iomc.ras.ru
Россия, Нижний Новгород
A. N. Kornev
Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Nizhny Novgorod, Russia
Author for correspondence.
Email: akornev@iomc.ras.ru
Россия, Нижний Новгород
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