TY - JOUR
T1 - Optical properties of binuclear zinc (II) macrocyclic complexes derived from 4-methyl-2,6-diformylphenol and 1,2-diaminobenzene
AU - Paredes-García, Verónica
AU - Venegas-Yazigi, D.
AU - Cabrera, A.
AU - Valencia-Gálvez, P.
AU - Arriagada, M.
AU - Ruiz-Leon, D.
AU - Pizarro, N.
AU - Zanocco, A.
AU - Spodine, Evgenia
N1 - Funding Information:
The authors acknowledge FONDAP 11980002 and FONDECYT 1080318 grants for financial support. Professor R. Aroca (University of Windsor, Canada) and Professor A. Cheetham (Materials Research Laboratory, University of California, Santa Barbara, USA) for laboratory facilities. DRL thanks CONICYT for a Post-doctoral position, and PVG thanks 21061162 doctoral grant.
PY - 2009/8/5
Y1 - 2009/8/5
N2 - In this work, we present the synthesis and optical study of the binuclear zinc(II) macrocyclic complexes, derived from 4-methyl-2,6-diformylphenol and 1,2-diaminobenzene (H2L). Two zinc macrocyclic complexes with different anions were prepared and characterized: [Zn2LCl2]·H2O (1) and [Zn2L](NO3)2 (2). The complexes are emissive, both in the solid state and in solution at room temperature. Spectroscopic properties of the macrocyclic complexes were investigated using stationary and time resolved methods in solutions of dimethylsulfoxide (DMSO), and in solid state. DMSO solutions show two emission bands centered at 480 and 521 nm for complex (1), and at 527 nm with a shoulder at 480 nm for (2). The emission spectra of these compounds in solid state show a red shifted band, presenting the maxima at 565 nm for (1) and 575 nm for (2). The emission lifetimes for these compounds are very short, viz. 650 and 480 ps for macrocycles (1) and (2), respectively.
AB - In this work, we present the synthesis and optical study of the binuclear zinc(II) macrocyclic complexes, derived from 4-methyl-2,6-diformylphenol and 1,2-diaminobenzene (H2L). Two zinc macrocyclic complexes with different anions were prepared and characterized: [Zn2LCl2]·H2O (1) and [Zn2L](NO3)2 (2). The complexes are emissive, both in the solid state and in solution at room temperature. Spectroscopic properties of the macrocyclic complexes were investigated using stationary and time resolved methods in solutions of dimethylsulfoxide (DMSO), and in solid state. DMSO solutions show two emission bands centered at 480 and 521 nm for complex (1), and at 527 nm with a shoulder at 480 nm for (2). The emission spectra of these compounds in solid state show a red shifted band, presenting the maxima at 565 nm for (1) and 575 nm for (2). The emission lifetimes for these compounds are very short, viz. 650 and 480 ps for macrocycles (1) and (2), respectively.
KW - Optical properties
KW - Zinc macrocyclic complexes
UR - http://www.scopus.com/inward/record.url?scp=67650218274&partnerID=8YFLogxK
U2 - 10.1016/j.poly.2009.04.027
DO - 10.1016/j.poly.2009.04.027
M3 - Article
AN - SCOPUS:67650218274
SN - 0277-5387
VL - 28
SP - 2335
EP - 2340
JO - Polyhedron
JF - Polyhedron
IS - 12
ER -