Published July 2008 | Version v1
Journal article Metadata-only

Solid products of the reaction of lanthanum(III) nitrate with potassium hexa(isothiocyanato)chromate(III) in an aqueous solution: X-ray diffraction analysis

Creators

  • 1. Kuzbasskij Gosudarstvennyj Tekhnicheskij Univ., Kemerovo (Russian Federation)
  • 2. Inst. Neorganicheskoj Khimii im. A.V. Nikolaeva SO RAN, Novosibirsk (Russian Federation)

Description

According to the X-ray structure examination of La(NO3)3 and K3[Cr(NCS)6] reaction crystalline products taken in 1:1 molar ratio in the aqueous medium, there are three crystalline materials, namely: unreacted K3[Cr(NCS)6]·H2O, K2La(NO3)5(H2O)2 and new K[La(H2O)8(NO3)][Cr(NCS)6]·2H2O composition compound crystallizing in the monoclinic syngony, P21/n sp. gr., a=12.8759(2), b=13.0454(3), c=17.7848(3) A, β=102.6840(10) deg, V=2914.43(9) A3, Z=4, ρcal=1.870 g/cm3. The lanthanum atom coordination polyhedron is a square antiprism with two vertices along the square faces, the chromium atom is the centre of a practically regular octahedron

Abstract (Russian)

Рентгеноструктурное исследование кристаллических продуктов реакции La(NО3)3 и K3[Сr(NСS)6], взятых в мольном соотношении 1:1 в водной среде, показало наличие трех кристаллических веществ: непрореагировавшего K3[Сr(NСS)6]·Н2О, K2La(NО3)5(Н2О)2 и нового соединения состава [La(Н2О)8(NО3)][Cr(NCS)6]·2Н2О, кристаллизующегося в моноклинной сингoнии, пр. гр. Р21/n, а=12.8759(2), b=13.0454(3), с=17.7848(3) А, β=102.6840(10) град, V=2914.43(9) А3, Z=4, ρвыч=1.870 г/см3. Координационный полиэдр атома лантана - квадратная антипризма с двумя шапками по квадратным граням, координационное окружение атома хрома представляет собой практически идеальный октаэдр

Additional details

Additional titles

Original title (Russian)
Рентгеноструктурный анализ твердых продуктов взаимодействия нитрата лантана(III) с гекса(изотиоцианато)хроматом(III) калия в водном растворе

Publishing Information

Journal Title
Zhurnal Neorganicheskoj Khimii
Journal Volume
53
Journal Issue
7
Journal Page Range
p. 1199-1204
ISSN
0044-457X
CODEN
ZNOKAQ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
40088616
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
CHEMICAL COMPOSITION; CHEMICAL REACTIONS; CHROMIUM COMPLEXES; LANTHANUM COMPLEXES; LANTHANUM NITRATES; LATTICE PARAMETERS; MONOCLINIC LATTICES; POTASSIUM COMPOUNDS; THIOCYANATES; X-RAY DIFFRACTION
Descriptors DEC
ALKALI METAL COMPOUNDS; ANTITHYROID DRUGS; CARBONIC ACID DERIVATIVES; COHERENT SCATTERING; COMPLEXES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; DRUGS; LANTHANUM COMPOUNDS; NITRATES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; OXYGEN COMPOUNDS; RARE EARTH COMPLEXES; RARE EARTH COMPOUNDS; SCATTERING; TRANSITION ELEMENT COMPLEXES

Optional Information

Notes
9 refs., 3 figs., 3 tabs.