Vibrational spectra, powder X-ray diffractions and physical properties of cyanide complexes with 1-ethylimidazole

Kürkçüoğlu, Güneş Süheyla; Kiraz, Fulya Çetinkaya; Sayın, Elvan

doi:10.1016/j.saa.2015.04.019

Cited by 15 publications

(3 citation statements)

References 26 publications

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“…According to these results, the complexes show a weak semiconductive behavior at room temperature. The similar conductivity measurements have been reported previously; 1.10 -10 Scm -1 for PcFe(py)CN and 3.10 -12 Scm -1 for PcCo(py)CN [30], 2.596x10 -8 Ω -1 cm -1 for Mn-Ni-etim, 2.047x10 -8 Ω -1 cm -1 for Fe-Ni-etim, 1.137x10 -7 Ω -1 cm -1 for Co-Ni-etim and 1.923x10 -9 Ω -1 cm -1 for Ni-Ni-etim [31].…”

Section: Conductivitymentioning

confidence: 98%

SYNTHESES, STRUCTURES AND PHYSICAL PROPERTIES OF CYANIDE-BRIDGED M(II)−Ni(II) BIMETALLIC COMPLEXES WITH 2-PYRIDINEETHANOL (M(II) = Fe, Co and Ni)

Sayın¹,

Kürkçüoğlu²

2016

AUBTD-A

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In this study, cyanide complexes with chemical formula [M(hepH)2Ni(μ-CN)2(CN)2] (hepH = 2-pyridineethanol; M = Fe(II), Co(II) and Ni(II); abbreviated to hereafter M-hepH-Ni) were obtained for the first time. The structures of these complexes were determined by using FT-IR and Raman spectroscopies, thermal and elemental analyses. The electrical and magnetic properties of the complexes were investigated by four-probe and Evans methods, respectively. Vibration assignments are obtained for all the observed bands and the spectral feature has been shown supported to the structure of complexes. Thermal behaviors of these complexes were examined using TG, DTG and DTA curves in the temperature range 30-700 °C in the static air atmosphere. According to thermal analysis curves, it has seen that neutral ligands (hepH) are released and cyanide ligands are decomposed in the complexes, followed usual decomposition mechanism. The final decomposition products are found to be the corresponding metal oxides. The magnetic measurements of the complexes are compared with experimental and theoretical values of the magnetic moment. Furthermore, Fe-hepH-Ni, Co-hepH-Ni and Ni-hepH-Ni complexes are determined to be paramagnetic.

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Section: Conductivitymentioning

confidence: 98%

SYNTHESES, STRUCTURES AND PHYSICAL PROPERTIES OF CYANIDE-BRIDGED M(II)−Ni(II) BIMETALLIC COMPLEXES WITH 2-PYRIDINEETHANOL (M(II) = Fe, Co and Ni)

Sayın¹,

Kürkçüoğlu²

2016

AUBTD-A

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“…Since the tetracyano nickelate ions in the salts are not bound by K + (or Na + ) cations, they can be considered as isolated units in D 4h symmetry. 34,35 Therefore, when the Ni-C≡N-M type bridge and Ni-C≡N type terminal groups occur in this salt, the changes in the cyano vibration wavenumbers in this group gain importance in evaluating the structure of the complexes. In the IR spectra of 1 and 2, the bridge-type ν(CN) stretching vibrational wavenumbers is greater than those of the terminal-type.…”

Section: Vibrations Of the Tetracyano Nickelate Groupmentioning

confidence: 99%

Preparation and Characterisation of the Cyano-Bridged Transition Metal Complexes Using N,N-Diethyl Thiourea as a Ligand

Karaağaç

2021

S.Afr.j.chem.

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New cyano bridged transition metal complexes, [Cu(detu)4Ni(CN)4]-2H2O (1) and [Zn(H2O)(detu)Ni(CN)4]-2H2O (2) (detu = N, N' diethyl thiourea) have been synthesised in powder form. Their structures were illuminated by using spectroscopic, thermal and elemental analysis techniques. The nickel atom exhibits square planar geometry in these complexes by coordinating with the cyano group's nitrogen atoms. The copper atom of 1 is six coordinated with two bridging cyano groups and four detu ligands. In contrast, the zinc atom of 2 is six coordinated with four bridging cyano groups, one detu ligand and one aqua ligand. In addition, the structure of 2 is formed from polymeric layers of |Zn-Ni(CN)41 „ with the detu and aqua ligands bonded to the zinc atom. Thermal stabilities and decomposition products of 1 and 2 were examined in the static air atmosphere between 30 and 900 °C. Keywords: btetracyanonickelate(II) complex, N,N'-diethyl thiourea, cyano-bridged complex, vibration spectra, thermal analysis.

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“…S3 and S4. The characteristic vibrational modes of the metal complexes were compared to those of similar materials and to the vibrational assignment of 1methylimidazole and 2-methylimidazole [52,53].…”

Section: Vibrational Studymentioning

confidence: 99%

Supramolecular architectures in luminescent Zn(II) and Cd(II) complexes containing imidazole derivatives: Crystal structures, vibrational and thermal properties, Hirshfeld surface analysis and electrostatic potentials

Santo

Echeverría

Piro

et al. 2017

Journal of Molecular Structure

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Vibrational spectra, powder X-ray diffractions and physical properties of cyanide complexes with 1-ethylimidazole

Cited by 15 publications

References 26 publications

SYNTHESES, STRUCTURES AND PHYSICAL PROPERTIES OF CYANIDE-BRIDGED M(II)−Ni(II) BIMETALLIC COMPLEXES WITH 2-PYRIDINEETHANOL (M(II) = Fe, Co and Ni)

SYNTHESES, STRUCTURES AND PHYSICAL PROPERTIES OF CYANIDE-BRIDGED M(II)−Ni(II) BIMETALLIC COMPLEXES WITH 2-PYRIDINEETHANOL (M(II) = Fe, Co and Ni)

Preparation and Characterisation of the Cyano-Bridged Transition Metal Complexes Using N,N-Diethyl Thiourea as a Ligand

Supramolecular architectures in luminescent Zn(II) and Cd(II) complexes containing imidazole derivatives: Crystal structures, vibrational and thermal properties, Hirshfeld surface analysis and electrostatic potentials

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