scholarly journals Diphosphine dioxide complexes of lanthanum and lutetium – The effects of ligand architecture and counter-anion

Polyhedron ◽  
2017 ◽  
Vol 133 ◽  
pp. 264-269 ◽  
Author(s):  
Robert D. Bannister ◽  
William Levason ◽  
Gillian Reid ◽  
Wenjian Zhang
Keyword(s):  
Counter Anion ◽  
Diphosphine Dioxide

Synthesis of Imidazolium Salt-Containing Poly(diphenylacetylene)s and the Effect of Counter Anion on Gas Permeability

2014 ◽  
Vol 71 (7) ◽  
pp. 334-337 ◽  
Author(s):  
Hyuma ITO ◽  
Toshikazu SAKAGUCHI ◽  
Tamotsu HASHIMOTO
Keyword(s):  
Gas Permeability ◽  
Counter Anion ◽  
Imidazolium Salt

Effect of the counter anion of cesium on foliar uptake and translocation

2009 ◽  
Vol 100 (1) ◽  
pp. 54-57 ◽  
Author(s):  
Hidenao Hasegawa ◽  
Hirofumi Tsukada ◽  
Hitoshi Kawabata ◽  
Yuki Chikuchi ◽  
Yuichi Takaku ◽  
...  
Keyword(s):  
Foliar Uptake ◽  
Counter Anion

scholarly journals Crystal structure of a nickel compound comprising two nickel(II) complexes with different ligand environments: [Ni(tren)(H2O)2][Ni(H2O)6](SO4)2

2020 ◽  
Vol 76 (3) ◽  
pp. 314-317
Author(s):  
Karilys González Nieves ◽  
Dalice M. Piñero Cruz
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Molar Ratio ◽  
Water Molecules ◽  
Nickel Compound ◽  
Counter Anion ◽  
Cationic Complex ◽  
Coordinated Water ◽  
Co Precipitation ◽  
Metal Ligand

The title compound, diaqua[tris(2-aminoethyl)amine]nickel(II) hexaaquanickel(II) bis(sulfate), [Ni(C6H18N4)(H2O)2][Ni(H2O)6](SO4)2 or [Ni(tren)(H2O)2][Ni(H2O)6](SO4)2, consists of two octahedral nickel complexes within the same unit cell. These metal complexes are formed from the reaction of [Ni(H2O)6](SO4) and the ligand tris(2-aminoethyl)amine (tren). The crystals of the title compound are purple, different from those of the starting complex [Ni(H2O)6](SO4), which are turquoise. The reaction was performed both in a 1:1 and 1:2 metal–ligand molar ratio, always yielding the co-precipitation of the two types of crystals. The asymmetric unit of the title compound, which crystallizes in the space group Pnma, consists of two half NiII complexes and a sulfate counter-anion. The mononuclear cationic complex [Ni(tren)(H2O)2]2+ comprises an Ni ion, the tren ligand and two water molecules, while the mononuclear complex [Ni(H2O)6]2+ consists of another Ni ion surrounded by six coordinated water molecules. The [Ni(tren)(H2O)2] and [Ni(H2O)6] subunits are connected to the SO4 2− counter-anions through hydrogen bonding, thus consolidating the crystal structure.

Regioselectivity in hydroxycarbonylation of styrene with Pd systems. The role of the counter anion

2000 ◽  
Vol 3 (4) ◽  
pp. 166-168 ◽  
Author(s):  
Inmaculada del Rı́o ◽  
Nuria Ruiz ◽  
Carmen Claver
Keyword(s):  
Counter Anion
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