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Two New Copper Borates with Mesoscale Cubic Supramolecular Cages Assembled from {Cu 4 @B 20 } Clusters
Author(s) -
Wang JiaJia,
Wei Qi,
Yang BaiFeng,
Yang GuoYu
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201605735
Subject(s) - supramolecular chemistry , boron , cluster (spacecraft) , copper , crystallography , cage , molecule , group (periodic table) , materials science , chemistry , crystal structure , combinatorics , mathematics , organic chemistry , computer science , programming language
Two new copper borates, namely H 6 [(μ 4 ‐O)Cu 4 @B 20 O 32 (OH) 8 ]⋅25 H 2 O ( 1 ) and H 6 [(μ 4 ‐O)Cu 4 @B 20 O 32 (OH) 8 ]⋅34 H 2 O⋅8 H 3 BO 3 ( 2 ), with 3D supramolecular framework have been made under solvothermal conditions, which built by novel cubic supramolecular cages with mesoscale cavities via the H‐bondings. Interestingly, the cage is assembled by [(μ 4 ‐O)Cu 4 @B 20 O 32 (OH) 8 ] ({Cu 4 @B 20 }) cluster units with different point‐group symmetry. Owing to extra H 3 BO 3 molecules participated in building the supramolecular framework, 2 has a larger cubic cage size and higher non‐framework volume, leading to the cage size extended to mesoporous size set as a version of ‘‘ 1 plus”.
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