TY - JOUR
T1 - A two-dimensional zinc(II)-Schiff base coordination polymer formed by six-membered metallacyclic repeating motif
T2 - Structural aspects, thermal and photophysical properties
AU - Sadhukhan, Dipali
AU - Ray, Aurkie
AU - Rosair, Georgina
AU - Charbonnière, Loïc
AU - Mitra, Samiran
PY - 2011
Y1 - 2011
N2 - A dicyanoamide-bridged 2D polynuclear zinc(II) complex having formula [Zn2(L)(µ-dca-KN1 KN5)2] n, 1 has been synthesized using the Schiff base ligand N,N'-bis(salicylidene)-1,3-diaminopentane, (H2L) and sodium dicyanoamide [Na(dca)]. The complex presents a 2D hexagonal structure formed by 1,5-dca singly bridged helical chains connected through double 1,5-dca bridges. The ligand and the complex are well characterized by elemental analyses, IR and UVvis spectroscopy. Thermogravimetric analysis is performed to investigate the thermal stability of the metalorganic framework. Photoluminescence studies of the Schiff base ligand in methanol and of the zinc(II) complex 1 in solid state show the presence of blue emission. The emission of the ligand occurs from an excited state involving an intramolecular proton-transfer process as a result of ketoenol tautomerisation and the zinc(II) complex emits from a ligand-centered excited state. © 2011 The Chemical Society of Japan.
AB - A dicyanoamide-bridged 2D polynuclear zinc(II) complex having formula [Zn2(L)(µ-dca-KN1 KN5)2] n, 1 has been synthesized using the Schiff base ligand N,N'-bis(salicylidene)-1,3-diaminopentane, (H2L) and sodium dicyanoamide [Na(dca)]. The complex presents a 2D hexagonal structure formed by 1,5-dca singly bridged helical chains connected through double 1,5-dca bridges. The ligand and the complex are well characterized by elemental analyses, IR and UVvis spectroscopy. Thermogravimetric analysis is performed to investigate the thermal stability of the metalorganic framework. Photoluminescence studies of the Schiff base ligand in methanol and of the zinc(II) complex 1 in solid state show the presence of blue emission. The emission of the ligand occurs from an excited state involving an intramolecular proton-transfer process as a result of ketoenol tautomerisation and the zinc(II) complex emits from a ligand-centered excited state. © 2011 The Chemical Society of Japan.
UR - http://www.scopus.com/inward/record.url?scp=79951992634&partnerID=8YFLogxK
U2 - 10.1246/bcsj.20100290
DO - 10.1246/bcsj.20100290
M3 - Article
SN - 0009-2673
VL - 84
SP - 211
EP - 217
JO - Bulletin of the Chemical Society of Japan
JF - Bulletin of the Chemical Society of Japan
IS - 2
ER -