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PbO(BO)(NO): A Lead Borate-Nitrate Containing an Anion-Centered [OPb] Chain with Large Optical Anisotropy.
Inorg Chem
January 2025
College of Chemistry and Materials Science, Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding 071002, China.
In the field of structural chemistry, crystals containing the [OM] tetrahedra (M = metal cation) structure have been well documented. However, compounds containing both [OPb] tetrahedra and π-conjugated groups are less reported due to their structural complexity. In this work, a new lead borate-nitrate, PbO(BO)(NO), has been synthesized by a high temperature melt method.
View Article and Find Full Text PDFTwo lead borate-nitrates with anion-centered [OPb] tetrahedra and two types of π-conjugated planar units showing large birefringence.
Dalton Trans
March 2022
College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China.
Two lead borate-nitrates PbO(BO)(NO) and PbO(BO)(NO)F were obtained by the high-temperature flux method. Interestingly, their crystal structure consists of anion-centered [OPb] tetrahedra and π-conjugated BO and NO units. The first principles calculations indicate that both compounds show large birefringence.
View Article and Find Full Text PDFExpanding the Averievite Family, ()CuO(O) ( = P, V; = K, Rb, Cs, Cu; = Cl, Br): Synthesis and Single-Crystal X-ray Diffraction Study.
Molecules
March 2021
Department of Crystallography, Institute of Earth Sciences, St. Petersburg State University, University Emb. 7/9, 199034 Saint-Petersburg, Russia.
Averievite-type compounds with the general formula ()[CuO(O)], where = alkali metal, = halogen and = P, V, have been synthesized by crystallization from gases and structurally characterized for six different compositions: ( = Cs; = Cl; = P), ( = Cs; = Cl; = V), ( = Rb; = Cl; = P), ( = K; = Br; = P), ( = K; = Cl; = P) and ( = Cu; = Cl; = V). The crystal structures of the compounds are based upon the same structural unit, the layer consisting of a kagome lattice of Cu ions and are composed from corner-sharing (OCu) anion-centered tetrahedra. Each tetrahedron shares common corners with three neighboring tetrahedra, forming hexagonal rings, linked into the two-dimensional [OCu] sheets parallel to (001).
View Article and Find Full Text PDF(Cs X)CuO(PO) ( X = Cl, Br, I): A Family of Cu S = / Compounds with Capped-Kagomé Networks Composed of OCu Units.
Inorg Chem
April 2019
Department of Chemistry, Department of Physics and Astronomy, and Institute for Quantum Matter , Johns Hopkins University, Baltimore , Maryland 21218 , United States.
Three new salt inclusion compounds (Cs X)CuO(PO) ( X = Cl, Br, I), phosphate analogues of the kagomé mineral averievite, are reported. Their crystal structures are composed of trigonal networks of corner-sharing OCu anion-centered tetrahedra, forming capped-kagomé planes, which can also be regarded as two-dimensional slices along the [111] direction of a pyrochlore lattice. Magnetization and heat capacity measurements reveal strong geometric frustration of this network and complex magnetic behavior.
View Article and Find Full Text PDFBonding Scheme and Optical Properties in BiM O (PO ) (M=Cd, Mg, Zn); Experimental and Theoretical Analysis.
Chemistry
November 2017
University of Siegen, Department Chemistry/Biology, Faculty of Science and Technology, 57068, Siegen, Germany.
Luminescence properties of the Bi(M,M') PO (M=Mg, Zn, Cd) series have been rationalized as a function of the M element using optical spectroscopy, as well as empirical and first principles calculations. The latter yielded indirect band gaps for all compounds with energies between 2.64 and 3.
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