The absolute co-stretching intensity and the 2π orbital population on the carbonyl groups in six-coordinate carbonyl transition metal complexes

1975 ◽  
Vol 25 (2) ◽  
pp. 438-441 ◽  
Author(s):  
Mohamed Sabry Ahmed Abd El-Mottaleb
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Carbonyl Groups ◽  
Orbital Population ◽  
The Absolute ◽  
Stretching Intensity

scholarly journals Phendione-Transition Metal Complexes with Bipolar Redox for Lithium Batteries

2020 ◽  
Author(s):  
Alae Eddine Lakraychi ◽  
Simon De Kreijger ◽  
Deepak Gupta ◽  
Benjamin Elias ◽  
Alexandru Vlad
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Lithium Batteries ◽  
Electrode Materials ◽  
Active Species ◽  
Charge Storage ◽  
Carbonyl Groups ◽  
Solid Electrode ◽  
Reversible Redox

<i>1,10-Phenanthroline-5,6-dione (Phendione) - based transition metal complexes are known for their use in pharmacological and catalysis applications. However, their application in electrochemical energy storage has not been investigated thus far. Herein we prove the feasibility of employing phendione - transition metal complexes for electrochemical charge storage by taking advantage of the reversible redox of both, carbonyl groups and transition metal center, contributing thus to augmented charge storage. Interestingly, the chemistry of the counter ion in the studied complexes effectively tunes the solubility and improves the cycling stability. Whereas further studies are required to limit the solubility and active species shuttle, this study explores the bottlenecks of phendione - transition metal complexes as electrode materials for solid electrode format batteries. </i>

Transition metal complexes of diethyl Cyclopentanone-2,5-diglyoxylate

1969 ◽  
Vol 22 (3) ◽  
pp. 505 ◽  
Author(s):  
DP Graddon ◽  
IT Townsend
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Infrared Spectra ◽  
Near Infrared ◽  
Carbonyl Groups ◽  
Heterocyclic Base ◽  
Spin Configuration ◽  
Molecular Weights ◽  
Near Infrared Spectra

Diethyl cyclopentanone-2,5-diglyoxylate (ecgH2; IV) forms complexes of the type M(ecg)Bn with divalent transition metals, where M = Mn, Fe, Co, Ni, Cu, Zn; B = H2O or a heterocyclic base, and n = 1 (when M = Cu) or n = 2 (M = others). All complexes have the high-spin configuration. Infrared spectra show the presence of chelate β-diketone rings and free carbonyl groups. Visible and near-infrared spectra support octahedral stereochemistry for the nickel(II) and cobalt(II) complexes. Molecular weights show the complexes to be dimeric. These results are consistent with an oxygen-bridged structure, M2L2B2n, in which base molecules are added above and below a planar M2L2 unit (VI).

Electronic interaction of ligands with carbonyl groups in transition-metal complexes of the types LMn(CO)5 and LMo(CO)5

1980 ◽  
Vol 19 (8) ◽  
pp. 2201-2205 ◽  
Author(s):  
Steven C. Avanzino ◽  
Hsiang-Wen Chen ◽  
Craig J. Donahue ◽  
William L. Jolly
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Electronic Interaction ◽  
Carbonyl Groups

Übergangsmetallkomplexe von Diazenen, XVI [1] Struktur und Mößbauerdaten von (2.3-Diazanorbornen)Fe3(CO)9 / Transition Metal Complexes of Diazenes, XVI [1] Structure and Mössbauer Data of (2,3-Diazanorbornene)Fe3(CO)9

1981 ◽  
Vol 36 (2) ◽  
pp. 205-207 ◽  
Author(s):  
H. Kisch ◽  
C. Krüger ◽  
A. Trautwein
Keyword(s):  
Molecular Structure ◽  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Iron Carbonyl ◽  
Mossbauer Spectrum ◽  
Carbonyl Groups ◽  
Mössbauer Spectrum ◽  
Mössbauer Data ◽  
Single Bonds

Abstract The molecular structure of (2,3-diazanorbornene)Fe3(CO)9 consists of a triangular Fe3(CO)9 group bound to the diazene unit. The seven-coordinated Fe(CO)3 group forms two Fe-N bonds with lengths of 1.974 and 1.965 Å, each of the two six-coordinated Fe(CO)3 groups has slightly shorter Fe-N-bonds of 1.898 and 1.903 Å. One Fe-Fe distance, 2.612Å, is longer than the two other ones, 2.572 and 2.582 Å, which are in the range of typical single bonds. The presence of seven-and six-coordinated iron carbonyl groups is also demonstrated by the Mössbauer spectrum showing signals with quadrupole splittings of 1.23 and 0.78, 0.62 ± 0.01 mm/s, respectively.

scholarly journals Phendione-Transition Metal Complexes with Bipolar Redox for Lithium Batteries

2020 ◽  
Author(s):  
Alae Eddine Lakraychi ◽  
Simon De Kreijger ◽  
Deepak Gupta ◽  
Benjamin Elias ◽  
Alexandru Vlad
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Lithium Batteries ◽  
Electrode Materials ◽  
Active Species ◽  
Charge Storage ◽  
Carbonyl Groups ◽  
Solid Electrode ◽  
Reversible Redox

<i>1,10-Phenanthroline-5,6-dione (Phendione) - based transition metal complexes are known for their use in pharmacological and catalysis applications. However, their application in electrochemical energy storage has not been investigated thus far. Herein we prove the feasibility of employing phendione - transition metal complexes for electrochemical charge storage by taking advantage of the reversible redox of both, carbonyl groups and transition metal center, contributing thus to augmented charge storage. Interestingly, the chemistry of the counter ion in the studied complexes effectively tunes the solubility and improves the cycling stability. Whereas further studies are required to limit the solubility and active species shuttle, this study explores the bottlenecks of phendione - transition metal complexes as electrode materials for solid electrode format batteries. </i>

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