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Zeitschrift für Naturforschung B

A Journal of Chemical Sciences

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IMPACT FACTOR 2016: 0.631

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1865-7117
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Volume 70, Issue 10 (Oct 2015)

Issues

Synthesis, crystal structure and physicochemical characterization of a Hg(II) complex with 6-methoxyquinoline as ligand

Cristian Villa-Pérez
  • CEQUINOR (CONICET, CCT-La Plata), Facultad de Ciencias Exactas, Departamento de Química, Universidad Nacional de la Plata, 47 y 115 (1900) La Plata, Argentina
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Isabel C. Ortega
  • GIAFOT, Facultad de Ciencias, Departamento de Química, Universidad Nacional de Colombia-Sede Medellín, Calle 59 A No. 63-020, Medellín, Colombia
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Angélica M. Payán-Aristizábal
  • GIAFOT, Facultad de Ciencias, Departamento de Química, Universidad Nacional de Colombia-Sede Medellín, Calle 59 A No. 63-020, Medellín, Colombia
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Gustavo Echeverría
  • Facultad de Ciencias Exactas, Departamento de Física, Universidad Nacional de La Plata and IFLP (CONICET, CCT-La Plata), C.C. 67, 1900 La Plata, Argentina
  • Other articles by this author:
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/ Gloria C. Valencia-Uribe
  • GIAFOT, Facultad de Ciencias, Departamento de Química, Universidad Nacional de Colombia-Sede Medellín, Calle 59 A No. 63-020, Medellín, Colombia
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Delia B. Soria
  • Corresponding author
  • CEQUINOR (CONICET, CCT-La Plata), Facultad de Ciencias Exactas, Departamento de Química, Universidad Nacional de la Plata, 47 y 115 (1900) La Plata, Argentina
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  • Other articles by this author:
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Published Online: 2015-08-11 | DOI: https://doi.org/10.1515/znb-2015-0069

Abstract

A new complex of Hg(II) with 6-methoxyquinoline (C10H9NO-6MQ) has been synthesized and characterized. The structure of the complex Hg(6MQ)Cl2 was determined by single crystal X-ray diffraction. It crystallizes in the monoclinic space group P21/c with a = 3.9139(3), b = 26.3400(2), c = 10.9090(9) Å, β = 89.833(6)°, V = 1124.6(1) Å3 and Z = 4 molecules per unit cell. The coordination geometry of the mercury(II) center can be described as a distorted square pyramid formed by one nitrogen atom of the 6MQ and four chlorine atoms. Fourier transform infrared, Raman and UV/Vis spectroscopic studies have been carried out to characterize the compound, using theoretical calculations for the assignment of the experimentally observed bands. The thermal behavior was investigated by thermogravimetric analysis. The quantum yield of singlet molecular oxygen production ΦΔ was measured with steady-state methods in ethanol, using 9,10-dimethylanthracene (DMA) as actinometer and Bengal rose as reference photosensitizer. The resultant singlet molecular oxygen was detected indirectly by photooxidation reactions of DMA. The luminescence properties have also been studied.

Keywords: density functional calculations; Hg(II) complex; 6-methoxyquinoline; singlet oxygen; spectroscopic properties; X-ray structure

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About the article

Corresponding author: Delia B. Soria, CEQUINOR (CONICET, CCT-La Plata), Facultad de Ciencias Exactas, Departamento de Química, Universidad Nacional de la Plata, 47 y 115 (1900) La Plata, Argentina, Fax: +54 221 4240172, E-mail:


Received: 2015-04-07

Accepted: 2015-05-05

Published Online: 2015-08-11

Published in Print: 2015-10-01


Citation Information: Zeitschrift für Naturforschung B, ISSN (Online) 1865-7117, ISSN (Print) 0932-0776, DOI: https://doi.org/10.1515/znb-2015-0069.

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Cristian Villa-Pérez, Itziar Oyarzabal, Gustavo A. Echeverría, Gloria C. Valencia-Uribe, José M. Seco, and Delia B. Soria
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