Ba16Nb5N19 - A nitridoniobate(V) containing isolated [NbN4](7-) and [Nb2N7](11-) units

Authors
Hohn, P Kniep, R
Citation
P. Hohn et R. Kniep, Ba16Nb5N19 - A nitridoniobate(V) containing isolated [NbN4](7-) and [Nb2N7](11-) units, Z NATURFO B, 56(7), 2001, pp. 604-610
Citations number
25
Categorie Soggetti
Chemistry
Journal title
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
ISSN journal
09320776 → ACNP
Volume
56
Issue
7
Year of publication
2001
Pages
604 - 610
Database
ISI
SICI code
0932-0776(200107)56:7<604:B-ANCI>2.0.ZU;2-0
Abstract
Ba16Nb5N19 was synthesized by reaction of Ba with Nb under nitrogen at ambi ent pressure at 1223 K. The refined crystal structure was solved in the spa ce group P (1) over bar (no. 2), Z = 2, with the lattice constants a = 1099 .33(3), b = 1140.41(15), c = 1622.06(6) pm, alpha = 72.197(2)degrees, beta = 59.949(1)degrees, gamma = 82.243(2)degrees and R-1 = 0.058, wR(2) = 0.088 . The crystal structure contains both isolated [NbN4](7-) as well as dimeri c units [Nb2N7](11-). Together with the B2+ ions the compound has to be reg arded as Ba-16[NbN4](3)[Nb2N7].