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Acta Cryst. (2004). E60, i124-i126 [ doi:10.1107/S1600536804023244 ]
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-Strontium carbodiimideAbstract: Colourless single crystals of -SrNCN were grown from reactive iodide/cyanide/azide fluxes in tantalum containers and structurally characterized by X-ray diffraction. Trigonal -SrNCN is isotypic with CaNCN and contains alternating layers of strontium cations and linear NCN2- anions oriented perpendicular to the layers. The Sr cations are octahedrally coordinated by carbodiimide N atoms, with Sr-N = 2.623 (2) Å and C=N = 1.232 (5) Å. Sr, C and N atoms have site symmetries of 
, and 3m, respectively.
Online 30 September 2004
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