Metal-ion induced alignment of an orthogonal anthracene–pyrimidine derivative. Cooperation of metal coordination, hydrogen bonding, and aromatic stacking in the buildup of one-, two- and three-dimensional networks

Helical Coordination Polymers from Achiral Components in Crystals. Homochiral Crystallization, Homochiral Helix Winding in the Solid State, and Chirality Control by Seeding

“…The present work is concerned with helical coordination polymers arising from achiral components. We studied the crystal structures and dynamic behaviors of metal complexes of an orthogonal anthracene−pyrimidine derivative, 1 (Figure ) . We report here on a unique case of homochiral helix-forming crystallization, where intracrystal and intercrystal chirality preservation is achieved via interstrand hydrogen bonding and single-colony crystal growth, respectively .…”

Coordination polymers fabricated from Cd(NO3)2andN,N′,O-pincer-type isonicotinoylhydrazone-based polytopic ligands – an insight from experimental and theoretical investigations

“…Bidentate nitrate coordination is quite common for cadmium( ii ) complexes. 25–27 Meanwhile, the Cd–N HL bond lengths in 1 and 2 are in the range 2.353(3)–2.396(4) Å, and the Cd–O(C) distances are 2.562(3) and 2.452(3) Å, respectively, both being in the range for similar bonds in other cadmium( ii ) complexes (Table 1). 28,29…”

The Role of π-Stacking in the Composition of Phloroglucinol and Phenazine Cocrystals

“…A similar orthogonalization of H bonding, π-stacking and herringbone motif in distinct domains was noted in cocrystal structures of hydroquinone and dihydroxy aromatics with phenazine . Similarly, metal coordination, hydrogen bonding and π-stacking direct supramolecular organization in the modular structure of 9-(5-pyrimidinyl)anthracene·Cd(NO 3 ) 2 ·2(CH 3 OH) . Despite the similarity in self-assembly domains, these crystal structures have different unit cell and molecular packing as revealed by their simulated powder X-ray diffraction (Figure S1, Supporting Information).…”

“…12b Similarly, metal coordination, hydrogen bonding and π-stacking direct supramolecular organization in the modular structure of 9-(5- pyrimidinyl)anthracene • Cd(NO 3 ) 2 • 2(CH 3 OH). 19 Despite the similarity in self-assembly domains, these crystal structures have different unit cell and molecular packing as revealed by their simulated powder X-ray diffraction (Figure S1, Supporting Information). That phenazine is unique in giving the variable molecular stoichiometry was evaluated by cocrystallization with acridine.…”