|
ИСТИНА |
Войти в систему Регистрация |
ФНКЦ РР |
||
The first photochromic bimetallic assemblies based on Mn(iii) and Mn(ii) Schiff-base (salpn, dapsc) complexes and pentacyanonitrosylferrateстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 мая 2022 г.
- Авторы: Kopotkov V.A., Sasnovskaya V.D., Korchagin D.V., Morgunov R.B., Aldoshin S.M., Simonov S.V., Zorina L.V., Schaniel D., Woike T., Yagubskii E.B.
- Журнал: CrystEngComm
- Том: 17
- Номер: 20
- Год издания: 2015
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 3866
- Последняя страница: 3876
- DOI: 10.1039/c5ce00354g
- Аннотация: Four cyano-bridged bimetallic complexes, {[Mn(salpn)]2[Fe(CN)5NO]}n (1), {[Mn(salpn)(CH3OH)]4[Mn(CN)5NO]}[C(CN)3]·3H2O (2), {[Mn(dapsc)][Fe(CN)5NO]·0.5CH3OH·0.25H2O}n (3) and {[Mn(salpn)(CH3OH)]4[Fe(CN)5NO]}(ClO4)2·4H2O (4), where salpn2− = N,N′-1,3-propylene-bis(salicylideneiminato) dianion and dapsc = 2,6-diacetylpyridine-bis(semicarbazone), have been synthesized and structurally characterized by single crystal X-ray diffraction. In 1, the nitroprusside anion [Fe(CN)5NO]2− coordinates with four [Mn(salpn)]+via four co-planar CN− groups, whereas each [Mn(salpn)]+ links two [Fe(CN)5NO]2− ions, which results in a two-dimensional network. The structure of 3 contains two independent neutral infinite chains {[Mn(dapsc)][Fe(CN)5(NO)]}∞ consisting of alternating cationic [MnII(dapsc)]2+ and anionic [FeII(CN)5(NO)]2− units connected through cyanide bridges. The cation complexes 2 and 4 have a pentanuclear molecular structure in which four [Mn(salpn)(MeOH)]+ fragments are linked by the [Mn(CN)5NO]3− or [Fe(CN)5(NO)]2− moieties, respectively. The magnetic and photochromic properties of 1 and 3 have been studied. The thermal magnetic behaviour of the complexes indicates the presence of weak antiferromagnetic interactions between Mn3+ or Mn2+ mediated by diamagnetic [Fe(CN)5NO]2− bridges. Irradiation of 1 and 3 with light gives birth to the long-lived metastable states of nitroprusside.
- Добавил в систему: Копотков Вячеслав Александрович