TY - JOUR
T1 - Synthesis and characterization of macrocyclic nickel(II) complexes with α-methylbenzyl groups as chiral pendants
AU - Han, Jeong Hyeong
AU - Cha, Min Ju
AU - Kim, Bong Gon
AU - Kim, Seog K.
AU - Min, Kil Sik
PY - 2008/7
Y1 - 2008/7
N2 - Novel nickel(II) hexaaza macrocyclic complexes, [Ni(LR,R)](ClO4)2 (1) and [Ni(LS,S)](ClO4)2 (2), containing chiral pendant groups have been synthesized by an efficient one-pot template condensation and characterized (LR,R/S,S = 1,8-di((R/S)-α-methylbenzyl)-1,3,6,8,10,13-hexaazacyclotetradecane). The crystal structures of 1 and 2 were determined by single-crystal X-ray analysis. Each complex has a square-planar coordination environment for the nickel(II) ion, and is either an R or an S enantiomorph depending on the pendant groups. The circular dichroism spectrum of 1 showed a negative, positive and negative peak at 345, 440, and 492 nm, respectively, and that of 2 exhibited an enantiomeric pattern.
AB - Novel nickel(II) hexaaza macrocyclic complexes, [Ni(LR,R)](ClO4)2 (1) and [Ni(LS,S)](ClO4)2 (2), containing chiral pendant groups have been synthesized by an efficient one-pot template condensation and characterized (LR,R/S,S = 1,8-di((R/S)-α-methylbenzyl)-1,3,6,8,10,13-hexaazacyclotetradecane). The crystal structures of 1 and 2 were determined by single-crystal X-ray analysis. Each complex has a square-planar coordination environment for the nickel(II) ion, and is either an R or an S enantiomorph depending on the pendant groups. The circular dichroism spectrum of 1 showed a negative, positive and negative peak at 345, 440, and 492 nm, respectively, and that of 2 exhibited an enantiomeric pattern.
KW - Chirality
KW - Circular dichroism
KW - Crystal structure
KW - Macrocyclic ligand
KW - Nickel(II) complex
UR - http://www.scopus.com/inward/record.url?scp=44749085798&partnerID=8YFLogxK
U2 - 10.1016/j.inoche.2008.03.027
DO - 10.1016/j.inoche.2008.03.027
M3 - Article
AN - SCOPUS:44749085798
SN - 1387-7003
VL - 11
SP - 745
EP - 748
JO - Inorganic Chemistry Communications
JF - Inorganic Chemistry Communications
IS - 7
ER -