Bildung von Nitridokomplexen durch Ammonolyse von Metallhalogeniden mit NH4+. Synthese und Struktur von (NH4)3Nb2NBr10, (NH4)3Ta2NI10 und (NH4)3W2NBr10 / Formation of Nitrido Complexes by Ammonolysis of Metal Halides with NH4+. Synthesis and Structure of (NH4)3Nb2NBr10, (NH4)3Ta2NI10 and (NH4)3W2NBr

Content Provider	Semantic Scholar
Author	Hoerner, Manfredo Frank, Klaus-Peter Strähle, Joachim
Copyright Year	1986
Abstract	The reaction of WCl6 or ReCl5 with NH4Cl in a sealed glas ampoule between 350 and 400 °C yields the hexachlorometallates(IV ) (NH4)2MCl6. MoCl5 forms (NH4)2MoC16 at 275 °C, whereas at 420 °C (NH4)3Mo2C19 is obtained. The salts (NH4)2MC16 crystallize in the K2PtCl6 type structure. NbBr5, WBr6 and Tal5 undergo ammonolysis reactions with NH4+ forming the nitrido complexes M2NX103- with a symmetrical nitrido bridge M = N = M . The com plexes have the point symmetry D4h. (NH4)3Nb2NBr10 crystallizes in the tetragonal space group P4/mnc with a = 727.8, c = 1932.9 pm and Z = 2. For (NH4)3Ta2NI10 a partially disordered structure in the tetragonal space group I4/mmm was observed. The lattice constants are a - 162.5, c - 1990.2 pm, Z = 2. (NH4)3W2NBr10 was obtained in the form of an am orphous powder. The vibrational spectra of the nitrido com plexes are assigned and discussed
Starting Page	423
Ending Page	428
Page Count	6
File Format	PDF HTM / HTML
DOI	10.1515/znb-1986-0405
Volume Number	41
Alternate Webpage(s)	http://zfn.mpdl.mpg.de/data/Reihe_B/41/ZNB-1986-41b-0423.pdf
Alternate Webpage(s)	https://doi.org/10.1515/znb-1986-0405
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article