Li4Na2CsB7O14: a new edge-sharing [BO4]5− tetrahedra containing borate with high anisotropic thermal expansion

Li₄Na₂CsB₇O₁₄, a new edge-sharing [BO₄]⁵⁻ tetrahedra containing borate with high anisotropic thermal expansion, was obtained under the atmospheric pressure conditions.

Ba3B10O17F2·0.1KF: the first mixed alkali/alkaline-earth metal fluorooxoborate with unprecedented double-layered B–O/F anionic arrangement

The first mixed alkali/alkaline-earth metal fluorooxoborate Ba₃B₁₀O₁₇F₂·0.1KF with a unique double-layered B–O/F anionic framework was successfully synthesized and systemically characterized.

The first lithium difluorophosphate LiPO2F2 with a neutral polytetrahedral microporous architecture

The first lithium difluorophosphate LiPO₂F₂ with a unique microporous architecture and improved optical properties was synthesized and characterized.

A new barium fluorooxoborate BaB5O8F·xH2O with large birefringence and a wide UV transparency window

By a cation substitution strategy, a new barium fluorooxoborate BaB₅O₈F was synthesized, which exhibits two interesting interpenetrating three-dimensional B–O/F frameworks and improved optical properties.

Chloride carbodiimide K12Pb51(CN2)30Cl54 with an unprecedented 45 Å unit cell axis and a large birefringence

K₁₂Pb₅₁(CN₂)₃₀Cl₅₄ exhibits a giant birefringence of 0.094 at 1064 nm and a large cell axis due to the rotation of Pb²⁺ cations.

ABaSbQ3 (A = Li, Na; Q = S, Se): diverse arrangement modes of isolated SbQ3 ligands regulating the magnitudes of birefringences

The interrelation of arrangement modes of isolated SbQ₃ ligands on structures and birefringences has been systematically studied in series of chalcogenides.

NaBaMIIIQ3 (MIII = Al, Ga; Q = S, Se): first quaternary chalcogenides with isolated edge-sharing (MIII2Q6)6− dimers

New series of quaternary chalcogenides with firstly discovered isolated edge-sharing (MIII2Q₆)⁶⁻ dimers showing obvious optical anisotropy were reported.