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022 _a09743626
040 _aMSU
_bEnglish
_cMSU
_erda
050 0 0 _aQD31 JOU
100 1 _aOu, Guang-Chuan
_eauthor
245 1 0 _aSynthesis and crystal structures of three isophthalato-bridged macrocyclic nickel(II) complexes /
_ccreated by Guang-Chuan Ou, Zhi-Zhang Li, Lin Yuan and Xianyou Yuan
264 _aBangalore :
_bSpringer,
_c2015.
336 _2rdacontent
_atext
_btxt
337 _2rdamedia
_aunmediated
_bn
338 _2rdacarrier
_avolume
_bnc
440 _aJournal of chemical sciences
_vVolume 127, number 1,
520 3 _aThree dinuclear isophthalato-bridged nickel(II) complexes formulated as [Ni(rac-L)]2(μ-IPA)(ClO4)2 (1), [Ni(RR-L)]2(μ-IPA)(ClO4)2 (2) and [Ni(SS-L)]2(μ-IPA)(ClO4)2 (3) (L = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyc-lotetradecane, IPA = isophthalic acid) have been isolated and characterized. Single crystal X-ray diffraction analyses revealed that the Ni(II) atoms have six-coordinated distorted octahedral environments, and the isophthalato ligand bridges two Ni(II) centres in a bis bidentate fashion to form dimers in all three complexes. The monomers of {[Ni(SS-L)]2(μ-IPA)} 2+ are connected through intermolecular hydrogen bonds to generate one-dimensional left-handed helical chains in complex 3. The homochiral natures of complexes 2and3have been confirmed by CD spectroscopy.
650 _aIsophthalato–bridged
_vMacrocyclic nickel(II)
_xComplexes crystal structure
700 1 _aLi, Zhi-Zhang
_eco author
700 1 _aYuan, Lin
_eco author
700 1 _aYuan, Xianyou
_eco author
856 _uhttps://doi.org/10.1007/s12039-014-0755-0
942 _2lcc
_cJA
999 _c169221
_d169221