Comparative Crystal Field Studies of Some Ligand of Cr3+ Complexes

Azeez Abdullah Azeez Barzinjy

doi:10.23918/eajse.v3i1sip109

Article Details

Comparative Crystal Field Studies of Some Ligand of Cr3+ Complexes

Authors:

Azeez Abdullah Azeez Barzinjy

Publisher:

Tishk International University

Main Topics:

Crystal Field Theory | Ligand | Cr+3 | UV-Visible Spectrum | Tanabe-Sugano Diagrams

Journal:

EURASIAN JOURNAL OF SCIENCE AND ENGINEERING Vol.3 Issue 1, pp.109-116

Document Type:

Article

Publication Date:

1/2017

Document Language:

English

Document ID (Org No.):

2001364772

pISSN:

2414-5602

DOI:

10.23918/eajse.v3i1sip109

Keywords:

Abstract:

 Chromium (III) complexes of nominate ligands are well recognized for their biological significance along with their anti-carcinogenic, anti-bacterial, and anti-fungal properties. In this investigation a range of Cr+3 complexes with diverse ligands were examined; and categorized with ultraviolet-visible, UV-Vis, spectrometer. Crystal field theory is an electrostatic method, utilized to characterize the fragmentation in d-orbital metal energies. It offers an expected explanation of the electronic energy levels that control the UV-Vis spectra. Accordingly, complexes’ crystal field splitting parameters (Δo) are measured through the transition-band using the maximum wavelength. Similarly an additional method, comprising Tanabe-Sugano (TS) diagrams, has been utilized to compute crystal field splitting parameters for assessment. Thus, good agreement was found between both techniques. The configuration of the ligands in increasing order is found to be (H2O) Cl < urea < H2O < OX < NCS < OX H2O < acac < en Cl < NH3 NCS < en which coordinate mostly with the spectro-chemical series. Therefore (H2O) Cl is the weakest ligand, while ethylenediamine (en) is the strongest one among the investigated ligands of Cr3+ complexes. Clearly strong ligands such as; ethylenediamine is considerably influences the coordination geometry of the metal complexes which effect on the deposit morphology and other physical and chemical properties.

Article Details

Comparative Crystal Field Studies of Some Ligand of Cr3+ Complexes

Authors: Azeez Abdullah Azeez Barzinjy

Publisher: Tishk International University

Main Topics: Crystal Field Theory | Ligand | Cr+3 | UV-Visible Spectrum | Tanabe-Sugano Diagrams

Journal: EURASIAN JOURNAL OF SCIENCE AND ENGINEERING Vol.3 Issue 1, pp.109-116

Document Type: Article

Publication Date: 1/2017

Document Language: English

Document ID (Org No.): 2001364772

pISSN: 2414-5602

DOI: 10.23918/eajse.v3i1sip109

Crystal Field Theory

Ligand

Cr+3

UV-Visible Spectrum

Tanabe-Sugano Diagrams

Issues

Authors:

Azeez Abdullah Azeez Barzinjy

Publisher:

Tishk International University

Main Topics:

Crystal Field Theory | Ligand | Cr+3 | UV-Visible Spectrum | Tanabe-Sugano Diagrams

Journal:

EURASIAN JOURNAL OF SCIENCE AND ENGINEERING Vol.3 Issue 1, pp.109-116

Document Type:

Article

Publication Date:

1/2017

Document Language:

English

Document ID (Org No.):

2001364772

pISSN:

2414-5602

DOI:

10.23918/eajse.v3i1sip109