Journal of Chemical Crystallography p. 448 - 454 (2013)
Update date:2022-07-31
Topics:
Duan, Peng-Cheng
Jin, Rui-Wen
Wang, Zi-Xuan
Yang, Guang
Reactions of a semirigid bipyrazole, 2,7-bis(4′-methylene-1H- 3′,5′-diphenylpyrazole) naphthalene (H2L) with Ag(I) or Cu(II) salts yielded four dinuclear complexes, namely, [Ag2(H 2L)2(NO3)2] (1), [Ag 2(H2L)2](ClO4)2 (2), [Ag2(H2L)2](BF4)2 (3), and [Cu2(H2L)2Cl4] (4). X-ray analysis illustrates that the three Ag(I) complexes are structurally similar and exhibit a rectangular shape, while the Cu(II) complex features an intramolecular π-stacking between two naphthalene-moieties and is much more compressed compared with those Ag(I) complexes. Two different conformations, namely cis, cis- and trans, trans-, have been observed for this bipyrazolyl ligand in its Ag(I) and Cu(II) complexes, respectively. Graphical Abstract: A semirigid naphthalene-bridged bipyrazole and its four dinuclear silver(I) or copper(II) complexes have been prepared and the crystal structures of the metal complexes have been studied by X-ray diffraction.[Figure not available: see fulltext.]
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