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Spectroscopic, Thermal, and Structural Studies of Two New Co‐Crystals of [4,4′‐Bithiazole]‐2,2′‐diamine
Author(s) -
Rashidi Ranjbar Zohreh,
Morsali Ali,
Ghoreishi Amiri Maryam
Publication year - 2014
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.201300266
Subject(s) - chemistry , triclinic crystal system , monoclinic crystal system , crystallography , diamine , stacking , crystal structure , infrared spectroscopy , single crystal , organic chemistry
Two new 2 : 1 co‐crystals based on [4,4′‐bithiazole]‐2,2′‐diamine (=2,2′‐diamino‐4,4′‐bithiazole (DABTZ)) with 2,2′‐bipyridine (bipy) and benzo‐18‐crown‐6 (bk) were synthesized by slow‐evaporation method in MeOH. These co‐crystals were characterized by means of elemental analysis, and IR, and 1 H‐ and 13 C‐NMR spectroscopy. Also, thermal analyses under air atmosphere and X‐ray crystallography have been performed on these structures. X‐Ray single‐crystal analyses revealed that these networks contain large vacant voids. These structures, [(DABTZ) 2 (bipy)] and [(DABTZ) 2 (bk)(MeOH)], crystallized in monoclinic and triclinic forms with space groups of P 2 1 / c and P $\bar 1$ , respectively. The self‐assembly of these compounds in the solid state is likely caused by both H‐bonding and ππ stacking.