TY - JOUR
T1 - Coordination polymers formed by the mono- and dinuclear Cu(II) complexes of 1,1'-methylene/thio-bis(2-naphthoxy) acetic acid
AU - Baghel, Garima Singh
AU - Chinta, Jugun Prakash
AU - Kaiba, Abdellah
AU - Guionneau, Phillippe
AU - Rao, Chebrolu P.
PY - 2012/2/1
Y1 - 2012/2/1
N2 - A series of five new Cu 2+ coordination polymers, namely, {[CuL CH2(DMF)](DMF)} n (1), {[CuL CH2(DMF)(2,2'- bipy)](CH 3OH)} n (2), {[CuL CH2(2,2'- bipy)](2H 2O)} n (3), {[CuL CH2(H 2O)(2,2'-bipy)](2H 2O)} n (5), {[Cu 2(L S) 2(DMF) 2](DMF)(CH 3OH)(2H 2O)} n (6), and three discrete coordination complexes {[Cu 2L CH2(2,2'- bipy) 2(CH 3O)](ClO 4)(CH 3OH)} (4), {[CuL S(2,2'bipy)]- (CH 3OH)} (7), and {[CuL S(1,10-phen)](DMF)} (8) have been prepared by the reaction of Cu(ClO 4) 2·6H 2O and 1,1'- methylene-bis(2-naphthoxy acetic acid) (L CH2) or 1,1'-thiobis( 2-naphthoxy acetic acid) (L S), with or without the presence of 2,2'-bipyridine, under varying reaction conditions or methods of crystallization or both. All the compounds were characterized by elemental analysis, IR, thermogravimetric analysis, and single crystal X-ray diffraction (XRD). The structures of L CH2 and L S obtained by single crystal XRD indicated antiorientation of the pendant arms which upon metal complexation may turn into cis- orientation leading to discrete metal ion complexes or may remain in anti- orientation leading to extended multidimensional co-ordination polymers. The complexation with Cu 2+ led to five different coordination spheres which in turn resulted in five different lattice structures. Thus, the present paper demonstrates the design of coordination polymers that are rich with mononuclear as well as dinuclear Cu 2+ centers wherein L CH2 or L S coordinates in a monodentate as well as a bridging fashion leading to the formation of one-dimensional curving, helical, and two-dimensional networks.
AB - A series of five new Cu 2+ coordination polymers, namely, {[CuL CH2(DMF)](DMF)} n (1), {[CuL CH2(DMF)(2,2'- bipy)](CH 3OH)} n (2), {[CuL CH2(2,2'- bipy)](2H 2O)} n (3), {[CuL CH2(H 2O)(2,2'-bipy)](2H 2O)} n (5), {[Cu 2(L S) 2(DMF) 2](DMF)(CH 3OH)(2H 2O)} n (6), and three discrete coordination complexes {[Cu 2L CH2(2,2'- bipy) 2(CH 3O)](ClO 4)(CH 3OH)} (4), {[CuL S(2,2'bipy)]- (CH 3OH)} (7), and {[CuL S(1,10-phen)](DMF)} (8) have been prepared by the reaction of Cu(ClO 4) 2·6H 2O and 1,1'- methylene-bis(2-naphthoxy acetic acid) (L CH2) or 1,1'-thiobis( 2-naphthoxy acetic acid) (L S), with or without the presence of 2,2'-bipyridine, under varying reaction conditions or methods of crystallization or both. All the compounds were characterized by elemental analysis, IR, thermogravimetric analysis, and single crystal X-ray diffraction (XRD). The structures of L CH2 and L S obtained by single crystal XRD indicated antiorientation of the pendant arms which upon metal complexation may turn into cis- orientation leading to discrete metal ion complexes or may remain in anti- orientation leading to extended multidimensional co-ordination polymers. The complexation with Cu 2+ led to five different coordination spheres which in turn resulted in five different lattice structures. Thus, the present paper demonstrates the design of coordination polymers that are rich with mononuclear as well as dinuclear Cu 2+ centers wherein L CH2 or L S coordinates in a monodentate as well as a bridging fashion leading to the formation of one-dimensional curving, helical, and two-dimensional networks.
UR - http://www.scopus.com/inward/record.url?scp=84858011823&partnerID=8YFLogxK
U2 - 10.1021/cg2013683
DO - 10.1021/cg2013683
M3 - Article
AN - SCOPUS:84858011823
SN - 1528-7483
VL - 12
SP - 914
EP - 926
JO - Crystal Growth and Design
JF - Crystal Growth and Design
IS - 2
ER -