Zwei Nitridchloride des Wolframs: W2NCl8 und W2NCl9

Abstract

AbstractTwo Tungsten Nitride Chlorides: W2NCl8 and W2NCl9A solid state reaction of tungsten(VI)chloride and cyanamide yielded black crystals of W2NCl8 and red plate‐like crystals of W2NCl9. The structures of these compounds were determined by single crystal X‐ray diffraction. The crystal structure of W2NCl8 contains [Cl2/2Cl3WNWCl3Cl2/2]‐units forming chains along the c‐axis. The tungsten atoms are linked by a symmetric nitrido bridge (d(W–N) = 1.8203(4) Å). The crystal structure of W2NCl9 contains a dichloro‐bridged dimer of a nitride‐bridged ditungsten unit [Cl5WNWCl3Cl2/2]2 with two different W–N distances of 1.726(9) Å and 2.012(9) Å.