ChemInform Abstract: Synthesis, Crystal Structure and Catalytic Activity of the Guanidinium Cation Directed Nickel(II)-Containing Open Wells-Dawson 19-Tungstodiarsenate(III) [{Ni(H2O)4}2{Na (H2O)}As2W19O67(H2O)]9-.

ChemInform ◽  
2015 ◽  
Vol 46 (25) ◽  
pp. no-no
Author(s):  
Mukesh Kumar Saini ◽  
Rakesh Gupta ◽  
Surendra Singh ◽  
Firasat Hussain
Keyword(s):  
Crystal Structure ◽  
Catalytic Activity ◽  
Guanidinium Cation

Synthesis, crystal structure and catalytic activity of the guanidinium cation directed nickel(ii)-containing open Wells–Dawson 19-tungstodiarsenate(iii) [{Ni(H2O)4}2{Na(H2O)}As2W19O67(H2O)]9−

RSC Advances ◽  
2015 ◽  
Vol 5 (32) ◽  
pp. 25273-25278 ◽  
Author(s):  
Mukesh Kumar Saini ◽  
Rakesh Gupta ◽  
Surendra Singh ◽  
Firasat Hussain
Keyword(s):  
Crystal Structure ◽  
Aqueous Solution ◽  
Catalytic Activity ◽  
Dicarboxylic Acid ◽  
Nickel Chloride ◽  
Solution Ph ◽  
Guanidinium Cation

Guanidinium directed open Wells–Dawson type [{Ni(H2O)4}2{Na(H2O)}As2W19O67(H2O)]9− polyanion 1 has been synthesized on reacting nickel chloride and trilacunary Na9[B-α-AsW9O33] in aqueous solution (pH ∼ 5.8), in presence of pyridine-2,6-dicarboxylic acid.

scholarly journals Crystal structure of a complement factor D mutant expressing enhanced catalytic activity.

1995 ◽  
Vol 270 (52) ◽  
pp. 31414
Author(s):  
Sunghee Kim ◽  
Sthanam V.L. Narayana ◽  
John E. Volanakis
Keyword(s):  
Crystal Structure ◽  
Catalytic Activity ◽  
Complement Factor

Synthesis, crystal structure and catalytic activity of some new chiral ansa-metallocenes of yttrium, lanthanum, samarium, lutetium and of zirconium

1999 ◽  
Vol 574 (2) ◽  
pp. 228-240 ◽  
Author(s):  
Herbert Schumann ◽  
Kerstin Zietzke ◽  
Roman Weimann ◽  
Jörg Demtschuk ◽  
Walter Kaminsky ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Catalytic Activity

scholarly journals Synthesis and catalytic activity of homoleptic lanthanide-tris(cyclopropylethinyl)amidinates

2015 ◽  
Vol 39 (10) ◽  
pp. 7595-7601 ◽  
Author(s):  
Farid M. Sroor ◽  
Cristian G. Hrib ◽  
Liane Hilfert ◽  
Sabine Busse ◽  
Frank T. Edelmann
Keyword(s):  
Crystal Structure ◽  
Catalytic Activity ◽  
X Ray Diffraction ◽  
X Ray ◽  
Type C

New unsolvated, homoleptic lanthanide(iii) tris(cyclopropylethinylamidinate) complexes of the type [c-C3H5–CC–C(NR)2]3Ln (R = iPr, cyclohexyl; Ln = Nd, Sm, Ho) have been prepared and the crystal structure of the holmium derivative [c-C3H5–CC–C(NiPr)2]3Ho has been confirmed by X-ray diffraction.

Synthesis, Characterization, and Crystal Structure of Several Novel Acidic Ionic Liquids: 1-ethyl-2-alkyl-benzimidazolium Tetra-Fluoroborate

2013 ◽  
Vol 457-458 ◽  
pp. 139-143 ◽  
Author(s):  
Ming Tian Wang ◽  
Chang Ping Pan ◽  
Wei Peng Gai ◽  
Xiao Xia Lv ◽  
Min Gang Zhai ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Ionic Liquid ◽  
Acetic Acid ◽  
Catalytic Activity ◽  
Lamellar Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Acidic Ionic Liquid ◽  
Acidic Ionic Liquids ◽  
Good Catalytic Activity

A series of novel acidic ionic liquid: 1-ethyl-2-alkyl-benzimidazolium tetra-fluoroborate (alkyl= Et, Pr-n, Bu-n) were prepared by simple acid-based neutralization of 1-ethyl-2-alkyl-benzimidazole and tetrafluoroboric acid. The compounds were characterized by FTIR spectra, elemental analysis,1HNMR spectra and thermogravimetric analysis. These novel tetra-fluoroborate salts show good catalytic activity to esterification of benzyl alcohol and acetic acid. Furthermore, a crystal of ([H-ebBiBF4) was prepared with the crystal structure and determined by X-ray diffraction analysis. The molecular is of lamellar structure as mainly π electron ring is stacked interleaving between two layers. The results of cation and anion arranged orderly in pair indicate that the coulombic attraction is more dominant. Simultaneously, the weak local hydrogen bonds C-H···F exist in the molecules.

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