Premium
Syntheses, Crystal Structures and Properties of Two Novel Mixed Anion Hybrids with Formulas of Pb 6 O 2 (BO 3 ) 2 (C 2 O 4 ) and Pb 4 (CO 3 ) 2 (C 2 O 4 )(OH) 2
Author(s) -
Yang Hui,
Mao Feifei,
Xu Cuixia
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201801072
Subject(s) - ion , crystallography , hydrothermal circulation , crystal structure , photoluminescence , spectral line , cluster (spacecraft) , crystal (programming language) , chemistry , hydrothermal synthesis , materials science , physics , geology , optoelectronics , organic chemistry , astronomy , seismology , computer science , programming language
It has been regarded as an ideal strategy to design and synthesize new compounds by combining different functional groups together. Based on numerous experiments, it is successful to assemble two kinds of mixed anion groups together and obtain two novel mixed‐anion hybrids, namely, Pb 6 O 2 (BO 3 ) 2 (C 2 O 4 ) ( 1 ) and Pb 4 (CO 3 ) 2 (C 2 O 4 )(OH) 2 ( 2 ) under hydrothermal condition. In compound 1 , three oxolead polyhedra share edges into a Pb 3 O 6 cluster which is further connected by other four similar ones via corner‐sharing into 2D fluctuant square layers. BO 3 units fill in the voids of oxolead layers into [Pb 6 O 2 (BO 3 ) 2 ] 2+ layers which are connected by C 2 O 4 2− anions into a 3D structure. Compound 2 displays [Pb 4 (CO 3 ) 2 (OH) 2 ] 2+ layers which can be described as an alternating connection of [PbO 6 (OH)] and flat [CO 3 ] triangles and are further linked by C 2 O 4 2− anions into 2D Pb 4 (CO 3 ) 2 (C 2 O 4 )(OH) 2 layered framework. Photoluminescent investigations indicate that their emission spectra consist of several broad bands centered around 430, 620 nm and 450, 610, 720 nm for compounds 1 and 2 , respectively. And interestingly, the intensity of the emission bands can be tuned through changing the excitation wavelengths.