نتایج جستجو برای: counter ion

تعداد نتایج: 244492  

2009
Ji-Bo Zhang Xiao-Shu Qu

The Co ion in the title salt, [Co(NO(3))(H(2)NCH(2)CH(2)NH(2))(2)](OH)(NO(3)), has oxidation state + III and is coordinated by four N atoms from two ethyl-enediamine mol-ecules and two O atoms from a nitrate anion in a distorted octa-hedral geometry. The charge of the complex cation is balanced by a hydroxide anion and a nitrate anion. The cations and anions are connected by N-H⋯O and O-H⋯O hyd...

2011
Hossein Aghabozorg Azadeh Mofidi Rouchi Behrouz Notash Masoud Mirzaei

The asymmetric unit of the title compound, (C(6)H(9)N(2))(2)[Cu(C(7)H(3)NO(4))(2)], contains half of a [Cu(pydc)(2)](2-) (pydcH(2) is pyridine-2,6-dicarb-oxy-lic acid) anion and one protonated 2-amino-4-methyl-pyridine (2a4mpH)(+) counter-ion. The anion is a six-coordinated complex with a distorted CuN(2)O(4) octa-hedral geometry around the Cu(II) ion. N-H⋯O and C-H⋯O hydrogen bonds along with ...

2016
Emma C. Bridgman Megan M. Doherty Kaleigh A. Ellis Elizabeth A. Homer Taylor N. Lashbrook Margaret E. Mraz Gina C. Pernesky Emma M. Vreeke Kayode D. Oshin Allen G. Oliver

In the asymmetric unit of the title compound, [CuBr(C18H18N4)]Br, there are three crystallographically independent cations. One of the cations exhibits positional disorder of the pyridin-2-yl-methyl groups over two sets of sites with refined occupancies of 0.672 (8) and 0.328 (8). The outer-sphere bromine counter-ion is severely disordered over multiple sites. In each cation, the Cu(II) ion is ...

2014

a) Run the program HPCESIM. Copy all basic parameters (Equipment, Capillary, Buffer, Sample, Inject and Detect) for electrophoretic separation of mixture of 4 organic acids into table 1. Table 1 Voltage U (kV) Current I (μA) Thermostating temperature T (oC) Capillary length to detector L (mm) ID (inner diameter of capillary) (μm) Separation mode (anionic/cationic) Composition of basic electroly...

2003
C. D. Cothran M. Landreman M. R. Brown W. H. Matthaeus

[1] The local three-dimensional structure of magnetic reconnection has been measured for the first time in a magnetohydrodynamic (MHD) laboratory plasma at the Swarthmore Spheromak Experiment. An array of 600 magnetic probes which resolve ion inertial length and MHD time scale dynamics on a single shot basis measured the magnetic structure of partial spheromak merging events. Counter-helicity s...

2013
Dohyun Moon Jong-Ha Choi

The are two independent complex cations in the title salt, [CrF2(C5H5N)4]ClO4, each located on a centre of inversion, as well as an independent perchlorate counter-ion. The complex cations adopt slightly distorted octa-hedral coordination environments around the Cr(III) ion, defined by four pyridine (py) N atoms in the equatorial plane and two F(-) ligands in the axial positions; intra-molecula...

2008
H. Y. Aboul-Enein Xian Xiang Sun

A novel ion selective PVC membrane electrode for determination of propranolol is developed. Silicotungstic acid is used as the counter ion and diisononyl phthalate (DNP) used as the plastizer. The electrode exhibits excellent potential response properties, showing a Nernstian response in the concentration of 3.0 × 10–6 ~ 2.6 × 10–2 M with the slope of 54.7 mV per decade, shorter conditioning ti...

2015
Jimmy Ahmad Siti Nadiah Abdul Halim Fiona N.-F. How

The title compound, Ph3(PhCH2)P(+)·Cl(-)·H2O, was obtained unintentionally as the product of an attempted synthesis of a silver di-thio-carbamate complex using benzyl-tri-phenyl-phospho-nium as the counter-ion. The asymmetric unit consists of a phospho-nium cation and a chloride anion, and a water mol-ecule of crystallization. In the crystal, the chloride ion is linked to the water mol-ecule by...

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