Early alkali metal (Li, Na, K) and tris(dimethylamino)sulfonium (TAS) salts of [1,2,5]thiadiazolo[3,4-c][1,2,5]thiadiazolidyl radical anion: Rational syntheses, structures and magnetic properties

Early alkali metal (Li, Na, K) and tris(dimethylamino)sulfonium (TAS) salts of [1,2,5]thiadiazolo[3,4-c][1,2,5]thiadiazolidyl radical anion: Rational syntheses, structures and magnetic properties Научная публикация

Журнал

European Journal of Inorganic Chemistry
ISSN: 1434-1948 , E-ISSN: 1099-0682

Вых. Данные

Год: 2006, Номер: 15, Страницы: 3061-3067 Страниц : 7 DOI: 10.1002/ejic.200600220

Ключевые слова

magnetic properties; nitrogen heterocycles; radical anions; sulfur heterocycles

Авторы

Ikorskii Vladimir N. ³ , Irtegova Irina G. ¹ , Lork Enno ² , Makarov Alexander Yu. ¹ , Mews Ruediger ² , Ovcharenko Victor I. ³ , Zibarev Andrey V. ^1,4

Организации

1	(Данные Web of science) Russian Acad Sci, Inst Organ Chem, Novosibirsk 630090, Russia
2	(Данные Web of science) Univ Bremen, Inst Inorgan & Phys Chem, D-28334 Bremen, Germany
3	(Данные Web of science) Russian Acad Sci, Int Tomogr Ctr, Novosibirsk 630090, Russia
4	(Данные Web of science) Novosibirsk State Univ, Dept Phys, Novosibirsk 630090, Russia

Salts of the [1,2,5]thiadiazolo[3,4-c][1,2,5]thiadiazolidyl radical anion (1) and the early alkali metals, [Li(12-crown-4)(2)][1] (3), [Na(15-crown-5)][1] (4), and [K(18-crown-6)][1] (5) as well as the salt [(Me2N)(3)S][1] (6) can be prepared by reduction of [1,2,5]thiadiazolo[3,4-c][1,2,5]thiadiazole (2) with PhS- anion followed by XRD and ESR characterization. These salts are thermally stable and soluble in MeCN. Low-temperature crystallization of salt 5 from MeCN or storage of 5 under MeCN for a few days at ambient temperature gives the solvate 5-MeCN (7). The radical anion 1 acts as bridging ligand in salts 4 and 5 and as chelating ligand in salt 7. In salt 3, the radical anion 1 is not coordinated to the cation and can be considered as "naked" anion. In salt 6, one of the two crystallographically independent 1 acts as bridging ligand, whilst the other is not coordinated to the cation. Magnetic susceptibility data obtained for salts 4 and 5 in the temperature range of 2-300 K revealed antiferromagnetic exchange interactions between paramagnetic centers: 4, J = -3.42, aJ = -1.12 cm(-1); 5, J = -1.22 cm(-1).

Ikorskii V.N. , Irtegova I.G. , Lork E. , Makarov A.Y. , Mews R. , Ovcharenko V.I. , Zibarev A.V.
Early alkali metal (Li, Na, K) and tris(dimethylamino)sulfonium (TAS) salts of [1,2,5]thiadiazolo[3,4-c][1,2,5]thiadiazolidyl radical anion: Rational syntheses, structures and magnetic properties
European Journal of Inorganic Chemistry. 2006. N15. P.3061-3067. DOI: 10.1002/ejic.200600220 WOS Scopus РИНЦ

Опубликована в печати:

1 авг. 2006 г.

Web of science	WOS:000239865200018
Scopus	2-s2.0-33747508929
РИНЦ	13523744
OpenAlex	W2104048816