Journal
JOURNAL OF SOLID STATE CHEMISTRY
Volume 225, Issue -, Pages 340-346Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2015.01.010
Keywords
Phosphate; Cobalt; Zinc; Piperazinium; Crystal structure; Magnetic susceptibility
Funding
- Spanish Ministerio de Economia y Competitividad [MAT2010-15094, MAT2011-27573-C04, MAT2013-40950-R]
- Spanish Ministerio de Economia y Competitividad (Factoria de Cristalizacion-Consolider Ingenio)
- Spanish Ministerio de Economia y Competitividad (Tecnicos de Infraestructuras Cientifico-Tecnologicas grants ) [PTA2011-4903-I, PTA2011-4950-I]
- FEDER
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A two-dimensional piperazinium cobalt-zinc phosphate, formulated as (C4N2H12)(1.5)(Co0.6Zn0.4)(2)(HPO4)(2)(PO4). H2O (2D), was synthesized under hydrothermal conditions. The crystal structure was determined using single-crystal X-ray diffraction data (monoclinic P2(1)/c, a=8.1165(3) angstrom, b=26.2301(10) angstrom, c=83595(4) angstrom, and beta= 110.930(5)degrees) and the hydrogen atom positions were optimized by DFT calculations. A single-crystal corresponding to one-dimensional metastable phase, (C4N2H12)0Co(0.3)Zn(0.7)(HPO4)(2) . H2O (1D), was also isolated and the crystal structure was determined (monoclinic P2(1)/c, a=8.9120(6) angstrom. b=14.0290(1) angstrom, c= 12.2494(5) angstrom, and beta=130.884(6)degrees). The bulk was characterized by chemical (C-H-N) analysis, powder X-ray diffraction (PXRD), powder X-ray thermodiffractometry (HT-XRD), transmission electron microscopy (STEM(DF)-EDX and EFTEM), and thermal analysis (TC/SDTA-MS), including activation energy data of its thermal decomposition. The magnetic susceptibility and magnetization measurements show no magnetic ordering down to 4 K. (C) 2015 Elsevier Inc All rights reserved.
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