Weak Interactions in Crystals: 4, 4′??Di (tert??butyl)??N??N′??bipyridinium Diperchlorate—A Biphenyl Analogue with Perpendicular Pyridine Rings

…, S Nick, C Näther, W Bensch

Index: Bock, Hans; Nick, Sabine; Naether, Christian; Bensch, Wolfgang Chemistry--A European Journal, 1995 , vol. 1, # 8 p. 557 - 563

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Citation Number: 13

Abstract

Abstract Oxidation of substituted N-aminopyridinium compounds yields bipyridinium salts. After anion exchange Br−→ CIO math image, it was possible to grow single crystals from the 4, 4′-di (tert-butyl) derivative. The structure determined at 100 K shows a dihedral angle of 84 between the molecular halves connected by a shortened N [BOND] N bond of 143 pm in length. This result is contrary to that expected from the isoelectronic correspondence〉 C [ ...