Double Complex Salts [Ln(C 6 H 5 NO 2 ) 3 (H 2 O) 2 ][Cr(NCS) 6 ] · 2H 2 O (Ln = Lu, Ce, Y): Synthesis and Crystal Structure

E. V. Cherkasova, N. V. Pervukhina, N. V. Kuratieva, T. G. Cherkasova

Результат исследования: Научные публикации в периодических изданияхстатья

Аннотация

Double complex salts [Ln(C 6 H 5 NO 2 ) 3 (H 2 O) 2 ][Cr(NCS) 6 ] · 2H 2 O, Ln = Lu (I), Ce (II), Y (III), have been synthesized by the reaction between aqueous solutions of Ln(NO 3 ) 3 (Ln = Lu, Ce, Y), K 3 [Cr(NCS) 6 ], and nicotinic acid (C 5 H 5 NCOO). The salts representing light lilac crystalline powders have been studied by chemical analysis, IR spectroscopy, and single-crystal X-ray diffraction. The salts crystallize in monoclinic system, space group P2 1 /n, Z = 4: a = 9.4969(15) Å, b = 25.606(4) Å, c = 15.541(2) Å, β = 107.126(4)°, V = 3624.34 Å 3 , ρ calcd = 1.864 g/cm 3 for I; a = 9.6559(2) Å, b = 25.8492(5) Å, c = 15.5303(3) Å, β = 106.586(1)°, V = 3715.0(1) Å 3 , ρ calcd = 1.756 g/cm 3 for II; and a = 9.5662(7) Å, b = 25.756(2) Å, c = 15.541(1) Å, β = 107.122(2)°, V = 3659.3(4) Å 3 , ρ calcd = 1.690 g/cm 3 for III. The cations in the crystal structures of complexes I–III have a chain polymer structure, and the coordination polyhedron of chromium(III) represents a slightly distorted octahedron. The steric factor has no appreciable effect on the specific features of the crystal structures in the series of lanthanide hexa(isothiocyanato)chromate(III) complexes with nicotinic acid, and the content of crystallization water molecules is varied alone in their composition.

Язык оригиналаанглийский
Страницы (с-по)329-334
Число страниц6
ЖурналRussian Journal of Inorganic Chemistry
Том64
Номер выпуска3
DOI
СостояниеОпубликовано - 1 мар 2019

Fingerprint Подробные сведения о темах исследования «Double Complex Salts [Ln(C <sub>6</sub> H <sub>5</sub> NO <sub>2</sub> ) <sub>3</sub> (H <sub>2</sub> O) <sub>2</sub> ][Cr(NCS) <sub>6</sub> ] · 2H <sub>2</sub> O (Ln = Lu, Ce, Y): Synthesis and Crystal Structure». Вместе они формируют уникальный семантический отпечаток (fingerprint).

  • Цитировать