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Frontispiece: Structural Insights into Borates with an Anion‐Templated Open‐Framework Configuration: Asymmetric K 2 BaB 16 O 26 versus Centrosymmetric K 3 CsB 20 O 32 and Na 2 M 2 NB 18 O 30 (M=Rb, Cs; N=Ba, Pb)
Author(s) -
Mutailipu Miriding,
Zhang Min,
Su Xin,
Yang Zhihua,
Chen Yanna,
Pan Shilie
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201785664
Subject(s) - boron , crystallography , ion , natural bond orbital , crystal structure , net (polyhedron) , topology (electrical circuits) , diffraction , single crystal , materials science , x ray crystallography , chemistry , physics , combinatorics , computational chemistry , geometry , mathematics , optics , density functional theory , organic chemistry
Five new mixed‐metal borates , namely, K 2 BaB 16 O 26 , K 3 CsB 20 O 32 , Na 2 Cs 2 BaB 18 O 30 , Na 2 Rb 2 PbB 18 O 30 , and Na 2 Cs 2 PbB 18 O 30 were synthesized by using the high‐temperature solution method. These structures were characterized by single‐crystal X‐ray diffraction and their B−O configurations feature three‐dimensional open‐framework structures with different types of channels. The frameworks can be reduced into four‐connected uninodal net with sra ‐, dia ‐, and nbo ‐type topology by assigning the 4‐c [B 5 O 10 ] 5− and [B 3 O 7 ] 5− clusters as basic nodes. For more information, see the Full Paper by M. Zhang, Z. Yang, and S. Pan et al. on page 13910 ff.