Formation of Enormously Strongly Bound Anionic Clusters Predicted in Binary Superacids

2018 ◽  
Vol 122 (43) ◽  
pp. 8539-8548 ◽  
Author(s):  
Marcin Czapla ◽  
Olimpia Ciepła ◽  
Jakub Brzeski ◽  
Piotr Skurski
Keyword(s):  
Anionic Clusters

Ionically Self-Assembled Clustomesogen with Switchable Magnetic/Luminescence Properties Containing [Re6Se8(CN)6]n−(n= 3, 4) Anionic Clusters

2011 ◽  
Vol 23 (23) ◽  
pp. 5122-5130 ◽  
Author(s):  
Yann Molard ◽  
Alexandra Ledneva ◽  
Maria Amela-Cortes ◽  
Viorel Cı̂rcu ◽  
Nikolai G. Naumov ◽  
...  
Keyword(s):  
Luminescence Properties ◽  
Anionic Clusters ◽  
Self Assembled

scholarly journals Hydrogen bonded networks based on hexarhenium(iii) chalcocyanide cluster complexes: structural and photophysical characterization

2018 ◽  
Vol 42 (14) ◽  
pp. 11888-11895
Author(s):  
Alexandra Ledneva ◽  
Sylvie Ferlay ◽  
Nikolay G. Naumov ◽  
Matteo Mauro ◽  
Stéphane Cordier ◽  
...  
Keyword(s):  
Cluster Complexes ◽  
Anionic Clusters ◽  
Hydrogen Bonded

Two series of hydrogen bonded networks based on [Re6Qi8(CN)a6]4− (Q = S or Se) anionic clusters and amidinium cations are reported, structurally and spectroscopically analyzed.

η3-Allylmeta]l-Schwefel-Komplexe, VI. Anionische η3-Allylnickel- und -palladium-Schwefel-Cluster/ η3-Allylmetal-Sulfur-Complexes, VI. Anionic η3-Allylnickel- and -palladium-Sulfur-Clusters

1983 ◽  
Vol 38 (5) ◽  
pp. 604-610 ◽  
Author(s):  
Reinhard Benn ◽  
Borislav Bogdanović ◽  
Peter Göttsch ◽  
Martin Rubach
Keyword(s):  
Crystal Structure ◽  
Nmr Spectra ◽  
Ionic Structure ◽  
Butyl Lithium ◽  
Sulfur Cluster ◽  
Anionic Clusters ◽  
H Nmr ◽  
Trigonal Bipyramidal ◽  
Lithium Sulfide

Abstractη3-Allylhydrogensulfidonickel (2) reacts with n-butyllithium with elimination of lithium sulfide and formation of the ionic η3-allylnickel-sulfur-cluster [(η3-C3H5Ni)3S2]+[Li(THF)2]- (4). The crystal structure of the analogous THF-TMEDA-adduct (4′) indicates that the nickel and sulfur atoms of the anion adopt a trigonal bipyramidal arrangement, in which the sulfur atoms are at the apices of the bipyramid. The Li(THF)2+ cation in 4 can be replaced by the (n-C4H9)4N+ cation (5). The 1H NMR spectra suggest the presence of two stereoisomers of the anionic clusters in 4 and 5 having C3h and Cs symmetry. In the reaction of η3-allyl- or η3-methallylhydrogensulfidopalladium (6, 6 a) with n-butyl-lithium crystalline compounds having the composition RC3H4PdSLi(THF)≈4, R = H, CH3 (7, 7 a) are obtained; their 1H NMR spectra also reveal the existence of the two stereoisomers having C3h and Cs symmetry. The same type of stereoisomerism is observed with the crystalline [(n-C4H9)4N]+[(η3-C3H5Pd)3S2]- (8) obtained from 7 and (n-C4H9)4N+ClO4-. For 7 and 7 a an ionic structure consisting of trigonal bipyramidal (η3-RC3H4Pd)3S2- anions and Li3S(THF)4+ cations is proposed.

Aggregation of chiral hexanuclear complex-cations into cationic metallosupramolecules with concomitant aggregation of inorganic counter-anions into anionic clusters

CrystEngComm ◽  
2012 ◽  
Vol 14 (6) ◽  
pp. 1936 ◽  
Author(s):  
Raeeun Lee ◽  
Asako Igashira-Kamiyama ◽  
Hiroki Motoyoshi ◽  
Takumi Konno
Keyword(s):  
Anionic Clusters ◽  
Hexanuclear Complex

Tailoring ionic liquid catalysts: structure, acidity and catalytic activity of protonic ionic liquids based on anionic clusters, [(HSO4)(H2SO4)x]− (x = 0, 1, or 2)

2014 ◽  
Vol 16 (7) ◽  
pp. 3463-3471 ◽  
Author(s):  
Karolina Matuszek ◽  
Anna Chrobok ◽  
Fergal Coleman ◽  
Kenneth R. Seddon ◽  
Małgorzata Swadźba-Kwaśny
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Ionic Liquids ◽  
Chemical Properties ◽  
Esterification Reaction ◽  
Anionic Clusters ◽  
Physico Chemical

The speciation of a family of inexpensive, easily prepared protonic ionic liquids, their physico-chemical properties and their performance as catalysts in the model esterification reaction have been correlated.

The preparation and structures of two Ge-Co-Fe anionic clusters; [GeCoFe3(CO)14]− and [Ge2CO5Fe2(CO)22]−

1992 ◽  
Vol 441 (1) ◽  
pp. 35-43 ◽  
Author(s):  
Skelte G. Anema ◽  
Glen C. Barris ◽  
Kenneth M. Mackay ◽  
Brian K. Nicholson
Keyword(s):  
Anionic Clusters

DFT calculations on polarizabilities and hyperpolarizabilities for the neutral and anionic yttrium oxide clusters

2015 ◽  
Vol 14 (07) ◽  
pp. 1550049 ◽  
Author(s):  
Ambigapathy Suvitha ◽  
Natarajan Sathiyamoorthy Venkataramanan
Keyword(s):  
Quantum Chemical ◽  
Dipole Moments ◽  
Small Variation ◽  
Chemical Hardness ◽  
High Symmetry ◽  
Polarizability Anisotropy ◽  
First Hyperpolarizability ◽  
Anionic Clusters ◽  
Electronic Delocalization ◽  
Hardness Values

The electronic properties, polarizabilities, first and second hyperpolarizabilities of YOn clusters of [Formula: see text]–12 were studied using the quantum chemical method. The vertical ionization potential (VIP) values for the anionic clusters increase monotonically with the cluster size. Among the neutral clusters YO3 and YO8 have the least chemical hardness values, where in anionic clusters with size [Formula: see text] possesses the least chemical hardness. Anionic clusters have more electrons attracting tendency than the neutral clusters. The computed static mean polarizability of neutral yttrium oxides has positive values but is close to zero. The incorporation of oxygen atom quenches the polarizability of yttrium. The computed polarizability anisotropy of neutral clusters shows an oscillatory effect both at static and at dynamic conditions. The first hyperpolarizability for many YOn clusters are close to zero. The existence of high symmetry in these clusters reduces the first hyperpolarizability values which was supported by the small dipole moments. The computed [Formula: see text] values for the static neutral and anionic clusters show only a small variation. The decrease in the polarizability and second hyperpolarizability with size can be interpreted in terms of the electronic delocalization and chemical bonding in the clusters.

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