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Dimethoxyhydroxycarbenium Hexafluorometallate – Synthesis, Spectroscopic Characterization and the Crystal Structure of (MeO) 2 COH + SbF 6 –
Author(s) -
Minkwitz Rolf,
Neikes Frank
Publication year - 2000
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/(sici)1099-0682(200006)2000:6<1261::aid-ejic1261>3.0.co;2-s
Subject(s) - chemistry , orthorhombic crystal system , raman spectroscopy , crystallography , crystal structure , bond length , trigonal crystal system , salt (chemistry) , antimony , carbonate , stereochemistry , inorganic chemistry , organic chemistry , physics , optics
Dimethyl carbonate reacts in the superacidic system HF/MF 5 (M = As, Sb) with formation of (MeO) 2 COX + MF 6 –(M = As, Sb; X = H, D). (MeO) 2 COH + SbF 6 –crystallizes in the orthorhombic space group Pna 2 1 (No. 33) with a = 9.668(2) Å, b = 8.340(2) Å, c = 11.135(4) Å and four formula units per cell. The unit cell contains (MeO) 2 COH + cations of approximate C s symmetry with an almost central trigonal planar CO 3 skeleton and C–O bond lengths in a range between 1.26(1) Å and 1.30(2) Å. The salt contains long O–H and Sb–F bond and an F ··· H contact of 1.62(9) Å. With regard to the formation of the salts, the reaction of dimethyl carbonate with the superacidic systems XF/MF 5 (X = H, D; M = As, Sb) is discussed and the Raman, IR, 1 H and 13 C NMR spectra of (MeO) 2 COX + MF 6 –(M = As, Sb; X = H, D) are reported.