Zwitterionic pyrrolidine‐2,2‐diylbis(phosphonic acid) at 100, 150 and 293 K |
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| Authors: | Gilles Olive Dianne D Ellis Didier Siri Franois Le Moigne Martin Lutz Anthony L Spek Paul Tordo Jean‐Pierre Reboul |
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| Institution: | Gilles Olive,Dianne D. Ellis,Didier Siri,François Le Moigne,Martin Lutz,Anthony L. Spek,Paul Tordo,Jean‐Pierre Reboul |
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| Abstract: | The title compound, C4H11NO6P2, reveals a two‐dimensional network of P—O—H?O=P and N—H?O=P hydrogen‐bond interactions, forming molecular slabs parallel with the (010) plane. One O—H?O interaction is distinct within these sets: whilst forming the shortest intermolecular hydrogen bond, it possesses a short P—O(H) bond of 1.5291 (10) Å. Weak C—H?O contacts link individual stacks to produce a three‐dimensional array. The compound is zwitterionic: one H atom from a P—O—H group has transferred to the pyrrolidine ring N atom. |
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