Structural and spectroscopic studies of [bis(picrato)(pentaethylene glycol)lanthanide(III)] picrate complexes with Ln(III) = Sm, Dy and Ho

Muhammad I. Saleh, Eny Kusrini, Rohana Adnan, Bahruddin Saad, Bohari Mohd. Yamin, Hoong K. Fun

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The Sm(III), Dy(III) and Ho(III) complexes with mixed pentaethylene glycol (EO5) and picrate (Pic-) ligands were obtained and characterized by elemental analysis, IR, 1H and 13C NMR spectroscopic techniques. They are isostructural with general formula of [Ln(Pic)2(EO5)]+(Pic)- (Ln = Sm(III), Dy(III) and Ho(III)). X-ray investigations showed that all the three complexes consist of hexadentate EO5 ligand and two picrate anions, one chelated in bidentate manner and the other one is monodentate located on the opposite sides of the primary Ln1-EO5 coordination sphere in a nine coordination environment. The geometry of the Ln1-EO5 sphere is tricapped trigonal prismatic with both benzene rings almost vertical to each other. TGA spectra of the complexes showed a gradual decomposition started from 250 °C followed by a sharp decrease in weight loss at 265 °C.

Original languageEnglish
Pages (from-to)169-178
Number of pages10
JournalJournal of Molecular Structure
Volume837
Issue number1-3
DOIs
Publication statusPublished - 30 Jun 2007

Fingerprint

picrates
Lanthanoid Series Elements
Glycols
Rare earth elements
glycols
Ligands
ligands
Benzene
Anions
Weight Loss
Negative ions
benzene
Nuclear magnetic resonance
X-Rays
anions
Decomposition
decomposition
X rays
nuclear magnetic resonance
Geometry

Keywords

  • Dysprosium
  • Lanthanide picrate
  • NMR
  • Pentaethylene glycol

ASJC Scopus subject areas

  • Structural Biology
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Materials Science (miscellaneous)

Cite this

Structural and spectroscopic studies of [bis(picrato)(pentaethylene glycol)lanthanide(III)] picrate complexes with Ln(III) = Sm, Dy and Ho. / Saleh, Muhammad I.; Kusrini, Eny; Adnan, Rohana; Saad, Bahruddin; Mohd. Yamin, Bohari; Fun, Hoong K.

In: Journal of Molecular Structure, Vol. 837, No. 1-3, 30.06.2007, p. 169-178.

Research output: Contribution to journalArticle

Saleh, Muhammad I. ; Kusrini, Eny ; Adnan, Rohana ; Saad, Bahruddin ; Mohd. Yamin, Bohari ; Fun, Hoong K. / Structural and spectroscopic studies of [bis(picrato)(pentaethylene glycol)lanthanide(III)] picrate complexes with Ln(III) = Sm, Dy and Ho. In: Journal of Molecular Structure. 2007 ; Vol. 837, No. 1-3. pp. 169-178.
@article{6f821dce2bed473998fb55a89b282f37,
title = "Structural and spectroscopic studies of [bis(picrato)(pentaethylene glycol)lanthanide(III)] picrate complexes with Ln(III) = Sm, Dy and Ho",
abstract = "The Sm(III), Dy(III) and Ho(III) complexes with mixed pentaethylene glycol (EO5) and picrate (Pic-) ligands were obtained and characterized by elemental analysis, IR, 1H and 13C NMR spectroscopic techniques. They are isostructural with general formula of [Ln(Pic)2(EO5)]+(Pic)- (Ln = Sm(III), Dy(III) and Ho(III)). X-ray investigations showed that all the three complexes consist of hexadentate EO5 ligand and two picrate anions, one chelated in bidentate manner and the other one is monodentate located on the opposite sides of the primary Ln1-EO5 coordination sphere in a nine coordination environment. The geometry of the Ln1-EO5 sphere is tricapped trigonal prismatic with both benzene rings almost vertical to each other. TGA spectra of the complexes showed a gradual decomposition started from 250 °C followed by a sharp decrease in weight loss at 265 °C.",
keywords = "Dysprosium, Lanthanide picrate, NMR, Pentaethylene glycol",
author = "Saleh, {Muhammad I.} and Eny Kusrini and Rohana Adnan and Bahruddin Saad and {Mohd. Yamin}, Bohari and Fun, {Hoong K.}",
year = "2007",
month = "6",
day = "30",
doi = "10.1016/j.molstruc.2006.10.053",
language = "English",
volume = "837",
pages = "169--178",
journal = "Journal of Molecular Structure",
issn = "0022-2860",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Structural and spectroscopic studies of [bis(picrato)(pentaethylene glycol)lanthanide(III)] picrate complexes with Ln(III) = Sm, Dy and Ho

AU - Saleh, Muhammad I.

AU - Kusrini, Eny

AU - Adnan, Rohana

AU - Saad, Bahruddin

AU - Mohd. Yamin, Bohari

AU - Fun, Hoong K.

PY - 2007/6/30

Y1 - 2007/6/30

N2 - The Sm(III), Dy(III) and Ho(III) complexes with mixed pentaethylene glycol (EO5) and picrate (Pic-) ligands were obtained and characterized by elemental analysis, IR, 1H and 13C NMR spectroscopic techniques. They are isostructural with general formula of [Ln(Pic)2(EO5)]+(Pic)- (Ln = Sm(III), Dy(III) and Ho(III)). X-ray investigations showed that all the three complexes consist of hexadentate EO5 ligand and two picrate anions, one chelated in bidentate manner and the other one is monodentate located on the opposite sides of the primary Ln1-EO5 coordination sphere in a nine coordination environment. The geometry of the Ln1-EO5 sphere is tricapped trigonal prismatic with both benzene rings almost vertical to each other. TGA spectra of the complexes showed a gradual decomposition started from 250 °C followed by a sharp decrease in weight loss at 265 °C.

AB - The Sm(III), Dy(III) and Ho(III) complexes with mixed pentaethylene glycol (EO5) and picrate (Pic-) ligands were obtained and characterized by elemental analysis, IR, 1H and 13C NMR spectroscopic techniques. They are isostructural with general formula of [Ln(Pic)2(EO5)]+(Pic)- (Ln = Sm(III), Dy(III) and Ho(III)). X-ray investigations showed that all the three complexes consist of hexadentate EO5 ligand and two picrate anions, one chelated in bidentate manner and the other one is monodentate located on the opposite sides of the primary Ln1-EO5 coordination sphere in a nine coordination environment. The geometry of the Ln1-EO5 sphere is tricapped trigonal prismatic with both benzene rings almost vertical to each other. TGA spectra of the complexes showed a gradual decomposition started from 250 °C followed by a sharp decrease in weight loss at 265 °C.

KW - Dysprosium

KW - Lanthanide picrate

KW - NMR

KW - Pentaethylene glycol

UR - http://www.scopus.com/inward/record.url?scp=34247170453&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34247170453&partnerID=8YFLogxK

U2 - 10.1016/j.molstruc.2006.10.053

DO - 10.1016/j.molstruc.2006.10.053

M3 - Article

VL - 837

SP - 169

EP - 178

JO - Journal of Molecular Structure

JF - Journal of Molecular Structure

SN - 0022-2860

IS - 1-3

ER -