A new copper(II) arsenate, Na₂Cu₃(AsO₃OH)₄•4H₂O containing discrete [Cu₃O₁₂]^18- units

Autor(en)

Tamara Đorđević, Ljiljana Karanovic, Zvonco Jaglicic

Abstrakt

Single crystals of the new disodium tricopper(II) tetrakis(hydrogenarsenate(V)) tetrahydrate, Na2Cu3(AsO3OH)4·4H2O were grown under hydrothermal conditions. The compound was characterized by room-temperature single-crystal X-ray diffraction, SEM-EDS analysis, Raman spectroscopy and magnetic susceptibility measurements. Na2Cu3(AsO3OH)4·4H2O represents a new layered structure-type [space group P21/c, a = 8.7089(17), b = 9.7452(19), c = 9.3353(19) Å, ß = 92.63(3)°, V = 791.4(3) Å3, Z = 4]. The layers are normal to [100] and are composed of the isolated Cu3O12 units interconnected by AsO3OH coordination tetrahedra. The crystal structure of Na2Cu3(AsO3OH)4·4H2O is related to a group of compounds formed by Cu2+-(XO4)3- layers (X=P5+, As5+) linked by M cations (M = alkali, alkaline earth, Pb2+, or Ag+) and partly by hydrogen bonds, where distinct links and patterns of the Cu3O12 units and XO4 tetrahedra were observed. The magnetic susceptibility and magnetization measurements reveal a canted antiferromagnetic ground state which is in excellent agreement with a layered magnetic structure determined by the copper ions of the Cu3O12 units.

Organisation(en)

Institut für Mineralogie und Kristallographie

Externe Organisation(en)

University of Belgrade, University of Ljubljana

Journal

Journal of Solid State Chemistry

Band

265

Seiten

55-63

Anzahl der Seiten

9

ISSN

0022-4596

DOI

https://doi.org/10.1016/j.jssc.2018.05.024

Publikationsdatum

09-2018

Peer-reviewed

Ja

ÖFOS 2012

104003 Anorganische Chemie, 104011 Materialchemie, 105113 Kristallographie

Schlagwörter

ASJC Scopus Sachgebiete

Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Ceramics and Composites, Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a751f367-c8ec-4251-989e-d87590b33de7