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Pentacoordinate Phosphorus in a High‐Pressure Polymorph of Phosphorus Nitride Imide P 4 N 6 (NH)
Author(s) -
Baumann Dominik,
Schnick Wolfgang
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201406086
Subject(s) - coordination number , imide , phosphorus , nitride , trigonal bipyramidal molecular geometry , fourier transform infrared spectroscopy , crystallography , spectroscopy , high pressure , topology (electrical circuits) , crystal structure , inorganic chemistry , chemistry , materials science , nanotechnology , chemical engineering , ion , organic chemistry , physics , thermodynamics , mathematics , layer (electronics) , quantum mechanics , combinatorics , engineering
Coordination numbers higher than usual are often associated with superior mechanical properties. In this contribution we report on the synthesis of the high‐pressure polymorph of highly condensed phosphorus nitride imide P 4 N 6 (NH) representing a new framework topology. This is the first example of phosphorus in trigonal‐bipyramidal coordination being observed in an inorganic network structure. We were able to obtain single crystals and bulk samples of the compound employing the multi‐anvil technique. γ‐P 4 N 6 (NH) has been thoroughly characterized using X‐ray diffraction, solid‐state NMR and FTIR spectroscopy. The synthesis of γ‐P 4 N 6 (NH) gives new insights into the coordination chemistry of phosphorus at high pressures. The synthesis of further high‐pressure phases with higher coordination numbers exhibiting intriguing physical properties seems within reach.