Premium
Die Kristallstruktur von K[F 5 W(≡NCl)]
Author(s) -
Dietrich Armin,
Neumüller Bernhard,
Dehnicke Kurt
Publication year - 2000
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/1521-3749(200012)626:12<2443::aid-zaac2443>3.0.co;2-9
Subject(s) - monoclinic crystal system , crystallography , crystal structure , chemistry , octahedron , ion , chloride , ionic bonding , toluene , stereochemistry , organic chemistry
Crystal Structure of K[F 5 W(≡NCl)] Orange single crystals of K[F 5 W(≡NCl)] have been formed as a by‐product from the reaction of tungsten nitrido chloride, WNCl 3 , with Me 3 SnF in the presence of potassium fluoride in toluene suspension. K[F 5 W(≡NCl)] crystallizes in the monoclinic space group P2 1 /c with four formula units per unit cell. Lattice dimensions at –83 °C: a = 1145.9(3), b = 770.4(2), c = 772.5(2) pm, β = 99.91(1)°, R 1 = 0.0742. The compound forms an ionic structure with octahedral [F 5 W(≡NCl)] – ions with a nearly linear arrangement of the N‐chloroimido ligand group W≡N–Cl (bond angle 173°, WN distance 174 pm). The K + ions link the anions via K…F contacts and coordination number eight to form double layers along [100]. The layers itself are associated by short bounding Cl…F contacts of 279 pm.