TY - JOUR
T1 - Synthesis and characterization of heterobimetallic coordination polymers containing chiral nickel(II) macrocycle and silver(I) cyanide
AU - Jeong, Ah Rim
AU - Shin, Jong Won
AU - Jeong, Jong Hwa
AU - Hayami, Shinya
AU - Min, Kil Sik
N1 - Publisher Copyright:
© Springer Science+Business Media Dordrecht 2015.
PY - 2015/6
Y1 - 2015/6
N2 - Chiral coordination polymers [Ni(LR,R)Ag(CN)2 ](ClO4)·CH3CN (3) and [Ni(LS,S)Ag(CN)2](ClO4)-CH3CN (4) were prepared by the reaction of K[Ag(CN)2] with [Ni(LR,R)](ClO4)2 (1) and [Ni(L [Ni(LS,S)](ClO4)2 (2), respectively (LR,R/S,S = 1,8-di((R/S)-α-methylbenzyl)-1,3,6,8,10,13-hexaazacyclotetradecane). The polymers were characterized by elemental analysis, spectroscopy, magnetic measurement and single crystal X-ray diffraction. In 3, the nickel(II) macrocyclic complexes link two Ag(CN)-2 ions in axial position and each Ag(CN)-2 ion binds two adjacent nickel(II) ions to form a 1-D chain structure. The structure of 4 is nearly same to that of 3, except for chirality. 3 and 4 exhibit very weak antiferromagnetic couplings through the bridged Ag(CN)-22 ions within the 1-D chains (g = 2.20 and J/kB = -0.55 K for 3 and 4). The circular dichroism spectra of 3 and 4 show an enantiomeric pattern and have bisignate Cotton effects.
AB - Chiral coordination polymers [Ni(LR,R)Ag(CN)2 ](ClO4)·CH3CN (3) and [Ni(LS,S)Ag(CN)2](ClO4)-CH3CN (4) were prepared by the reaction of K[Ag(CN)2] with [Ni(LR,R)](ClO4)2 (1) and [Ni(L [Ni(LS,S)](ClO4)2 (2), respectively (LR,R/S,S = 1,8-di((R/S)-α-methylbenzyl)-1,3,6,8,10,13-hexaazacyclotetradecane). The polymers were characterized by elemental analysis, spectroscopy, magnetic measurement and single crystal X-ray diffraction. In 3, the nickel(II) macrocyclic complexes link two Ag(CN)-2 ions in axial position and each Ag(CN)-2 ion binds two adjacent nickel(II) ions to form a 1-D chain structure. The structure of 4 is nearly same to that of 3, except for chirality. 3 and 4 exhibit very weak antiferromagnetic couplings through the bridged Ag(CN)-22 ions within the 1-D chains (g = 2.20 and J/kB = -0.55 K for 3 and 4). The circular dichroism spectra of 3 and 4 show an enantiomeric pattern and have bisignate Cotton effects.
KW - Antiferromagnetic interaction
KW - Chirality
KW - Circular dichroism
KW - Crystal structure
KW - Nickel
KW - Silver
UR - http://www.scopus.com/inward/record.url?scp=84944074838&partnerID=8YFLogxK
U2 - 10.1007/s10847-015-0513-z
DO - 10.1007/s10847-015-0513-z
M3 - Article
AN - SCOPUS:84944074838
SN - 0923-0750
VL - 82
SP - 145
EP - 152
JO - Journal of Inclusion Phenomena and Macrocyclic Chemistry
JF - Journal of Inclusion Phenomena and Macrocyclic Chemistry
IS - 1
ER -