Synthesis, Crystal Structures and Properties of Two Transition Metal Complexes Based on 4, 4'-{[2, 2'-(ethane-1, 2-bicarboxymethyl)] amino-bis(acetyl)} Dibenzoic Acid

2014 ◽  
Vol 997 ◽  
pp. 255-259
Author(s):  
Ying Ying Bing ◽  
Hong Gao ◽  
Ming Hu

Two isostructural transition metal complexes based on the 4,4'-{[2,2'-(ethane-1,2-bicarboxymethyl)] amino-bis (acetyl)} dibenzoic acid (H4L) were synthesized under hydrothermal conditions, namely, [M(H2L)(H2O)]·3H2O (M=Ni, 1 ; Co, 2). The two compounds were structurally characterized by infrared spectra, thermogravimetric analysis and single crystal X-ray diffractions. Compounds 1-2 are mononuclear units and further extended to generate the two dimensional structures by hydrogen-bonds and π-π interactions. Compounds 1 exhibit the high thermal stability.

2020 ◽  
Vol 17 ◽  
Author(s):  
Sujit Hegade ◽  
Gautam Gaikwad ◽  
Yuvraj Jadhav ◽  
Sanjay Chavan ◽  
Ganpatrao Mulik

: The catalytic activity of Schiff base Co(II), Ni(II), Cu(II) and Zn(II) transition metal complexes were tested for N-Acylation of heterocycles with acetyl chloride. It is observed that all the complexes worked as the efficient catalysts. The Structural type of the complexes were studied by X-ray powder diffractogram (XRD). The mixed ligand complexes with PPh3 ligand show greater activity as compared to Phen complexes and Schiff base complexes. Especially complex [Ni(L)(PPh3)2Cl2] efficiently worked as catalyst because of high thermal stability (TGA-DSC) and large catalytic surface area (BET).


2013 ◽  
Vol 52 (3) ◽  
pp. 1182-1184 ◽  
Author(s):  
Lakmal C. Kalutarage ◽  
Mary Jane Heeg ◽  
Philip D. Martin ◽  
Mark J. Saly ◽  
David S. Kuiper ◽  
...  

1981 ◽  
Vol 46 (10) ◽  
pp. 2345-2353 ◽  
Author(s):  
Karel Baše ◽  
Bohumil Štíbr ◽  
Jiří Dolanský ◽  
Josef Duben

The 6-N(CH3)3-6-CB9H11 carbaborane reacts with sodium in liquid ammonia with the formation of 6-CB9H12- which was used as a starting compound for preparing the 4-CB8H14, 9-L-6-CB9H13 (L = (CH3)2S, CH3CN and P(C6H5)3), 1-(η5-C5H5)-1,2-FeCB9H10-, and 2,3-(η5-C5H5)2-2,31-Co2CB9H10- carboranes. The 4-CB8H14 compound was dehydrogenated at 623 K to give 4-(7)-CB8H12 carborane. Base degradation of 6-N(CH3)3-6-CB9H11 in methanol resulted in the formation of 3,4-μ-N(CH3)3CH-B5H10. The structure of all compounds was proposed on the basis of their 11B and 1H NMR spectra and X-ray diffraction was used in the case of the transition metal complexes.


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