نتایج جستجو برای: acetonitrile

تعداد نتایج: 7857  

2001
Jadwiga Stroka Brian G. Cox Hermann Schneider

The reduction of the Cd(2,2,2)2+ complex has been studied in acetonitrile using polarography, chronocoulometry, and cyclic voltammetry. The corresponding kinetic parameters have been calculated and are compared with those obtained for the solvated cadmium cation in the same solvent. The study of the eiectrochemical reduction mechanism showed that the final stable products are the free ligand (2...

Journal: :Organic letters 2006
Indubhusan Deb Mamta Dadwal Shaikh M Mobin Irishi N N Namboothiri

[reaction: see text] The Morita-Baylis-Hillman reaction of a variety of conjugated nitroalkenes with activated nonenolizable carbonyl compounds such as glyoxylate, trifluoropyruvate, pyruvaldehyde, and ninhydrin in the presence of 40-100 mol % of DMAP in acetonitrile or 100 mol % of imidazole in CHCl(3) or THF provided the adducts in decent to good yields. In most cases, the reactions catalyzed...

2007
Aliakbar Dehno Khalaji Korbanjhon Brad Yan Zhang

In the title compound, [Cu(C(2)H(3)N)(2)(C(22)H(28)N(2)O(6))]ClO(4), the Cu atom is coordinated by two N atoms from one bidentate Schiff base ligand and two N atoms from two acetonitrile groups. The Cu atom adopts a tetra-hedral geometry. The Cu-N(ligand) distances are 2.076 (3) and 2.089 (3) Å, and the Cu-N(acetonitrile) distances are 1.964 (4) and 1.975 (4) Å.

2007
Ramaiyer Venkatraman Lungile Sitole Frank R. Fronczek

In the title compound, bis({6-ethylamino-10-[2-(methoxycarbonyl)phenyl]-2,7-dimethylxanthen-3-ylidene}ethanaminium) hexachloridotin(IV) acetonitrile disolvate, (C(27)H(29)N(2)O(3))(2)[SnCl(6)]·2C(2)H(3)N, the octa-hedral SnCl(6) (2-) anion lies on an inversion center. The xanthene ring system is essentially planar, with an average deviation of 0.020 Å, and the substituent benzene ring forms a d...

2010
Carsten Knapp Rabiya Uzun

The title compound, C(36)H(30)NP(2) (+)·Br(-)·C(2)H(3)N, crystallized from a CH(3)CN/OEt(2) solution as an acetonitrile solvate. The central P-N-P angle [142.88 (10)°] is significantly larger than in the corresponding chloride and iodide structures.

2013
E. Hawlicka

The conductance o f N al in acetonitrile-water mixtures was measured at 25.000 ± 0.001 °C for the whole com position range o f the mixed solvent, the salt molarity ranging from 5 • 10“ 5 to 1 • 10-2 . Using the Fuoss-Hsia equation with the Femandez-Prini parameters, the association constants were computed for several values o f the ion-ion distances. The influence o f the mixed solvent composit...

2013
Sari M. Närhi Raija Oilunkaniemi Risto S. Laitinen

In the title compound, [TeBr(4)(C(22)H(23)OP)]·CH(3)CN, the Te atom exhibits a square-pyramidal coordination with an apical Te-C bond and four basal Te-Br bonds. The conformation of the aliphatic C-C-C-C chain is gauche [torsion angle = -67.7 (8)°]. A weak C-H⋯Br inter-action helps to establish the conformation. In the crystal, there is a weak secondary bonding inter-action [Te⋯N = 3.456 (11) Å...

2011
Daniel M. Seo Paul D. Boyle Wesley A. Henderson

The structure of the title compound, [Li(BF(4))(CH(3)CN)](n), consists of a layered arrangement parallel to (100) in which the Li(+) cations are coordinated by three F atoms from three tetra-fluoridoborate (BF(4) (-)) anions and an N atom from an acetonitrile mol-ecule. The BF(4) (-) anion is coordinated to three different Li(+) cations though three F atoms. The structure can be described as be...

2010
Younas Aouine Anouar Alami Abdelilah El Hallaoui Abdelrhani Elachqar Hafid Zouihri

The asymmetric unit of the title compound, C(10)H(6)N(2)O(2), contains two independent mol-ecules. The dihedral angles between the acetonitrile and the 1H-isoindole-1,3(2H)-dione units are 69.0 (7)° and 77.0 (5)° in the two mol-ecules. One of the two terminal N atoms is disordered over two positions in a 0.66 (8):0,34 (8) ratio. In the crystal structure, the mol-ecules are linked by inter-molec...

2012
Benjamin P. Burke Peter Greenman Adam M. Smith Stephen J. Archibald

In the title compound, C(26)H(23)BrP(+)·Br(-)·C(2)H(3)N, the dihedral angles between the plane of the benzylic phenyl ring attached to the P atom and the planes of the three directly attached phenyl rings are 34.04 (12), 45.48 (13) and 87.18 (9)°. In the crystal, centrosymmetric pairs of cations and anions are linked into dimeric aggregates via C-H⋯Br hydrogen bonds. There is also a C-H⋯N hydro...

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