Polyazide chemistry: preparation and characterization of Te(N3)4 and [P(C6H5)4]2[Te(N3)6] and evidence for [N(CH3)4][Te(N3)5].

Preparation and Characterization of the First Binary Titanium Azides, Ti(N3)4, [P(C6H5)4][Ti(N3)5] and [P(C6H5)4]2[Ti(N3)6] and on Linear Ti-N-NN Coordination

Cation-dependent nuclearity of the copper-azido moiety: synthesis, structure, and magnetic study.

Mono-, di-, and trinuclear copper-azido moieties have been synthesized by varying the size of the countercations. [Bu4N]+ yielded a [Cu2(N3)6]2- copper-azido moiety in [Bu4N]2[Cu2(mu(1,1)-N3)2(N3)4], 1, and [Pr4N]+ yielded a [Cu3(N3)8]2- moiety in {[Pr4N]2[Cu3(mu(1,1)-N3)4(N3)4]}n, 2, in which symmetry-related [Cu3(N3)8]2- moieties are doubly mu(1,1)-azido bridged to form unprecedented infinite...

Synthesis and Characterization of Tetraphenylphosphonium Tetraazidoborate

The chemistry of boron azides, first reported by E. Wiberg et al. in 1954 [1], was further investigated by P. I. Paetzold [2 4], and the field has been reviewed [5, 6]. Structural and spectroscopic data for boron dichloride azide (trimeric) [7, 8] and dimethylboron azide have been reported in the literature [9]. Quite recently, additional boron azides have been reported and structurally charact...

Structures and magnetic properties of copper(II) and manganese(II) polymers derived from pseudohalides and a flexible zwitterionic dicarboxylate ligand.

The flexible zwitterionic dicarboxylate ligand 1,4-bis(4-carboxylato-1-pyridinium)butane (bcpb) assumes different conformations to collaborate with pseudohalides in various coordination modes to produce coordination polymers in which distinct anionic motifs with mixed carboxylate and pseudohalide bridges are interlinked by the cationic butylenebis(pyridinium) tethers. The Cu(II) compound, [Cu2(...

Above-room-temperature ferroelastic phase transition in a perovskite-like compound [N(CH3)4][Cd(N3)3].

A new perovskite-like compound [N(CH3)4][Cd(N3)3] is reported here, which undergoes a series of reversible phase transitions including an above-room-temperature ferroelastic phase transition. An order-disorder mechanism is found in these structural transitions owing to the sway of the rod-like N3(-) bridges as well as the rotation of the tetrahedron-like [N(CH3)4](+) guests.