نتایج جستجو برای: cyanates
تعداد نتایج: 554 فیلتر نتایج به سال:
The title compound, C(13)H(10)ClN(3)OS, was prepared by the reaction of 3-amino-2-chloropyridine with benzoyl isothio-cyanate at room temperature. The thio-urea group makes dihedral angles of 47.17 (5) and 51.88 (4)°, respectively, with the benzene and pyridyl rings, while the angle between the benzene and pyridine rings is 8.91 (3)°. Inter-molecular hydrogen-bond inter-actions link neighbourin...
In the title complex, [Cd(2)(NCS)(4)(C(13)H(19)N(3)O)(2)], the two Cd(II) ions are bridged by a pair of thio-cyanate N:S-bridging ligands around an inversion center. One terminal thio-cyanate N atom and one N,N',N''-tridentate Schiff base ligand complete a distorted CdN(5)S octa-hedral geometry about each Cd(II) atom. In the crystal, the Schiff base aromatic rings of adjacent mol-ecules are arr...
In the title mononuclear Schiff base copper(II) complex, [Cu(C(12)H(16)BrN(2)O)(NCS)], the Cu(II) ion is coordinated by two N atoms and one O atom from a Schiff base ligand, and by one N atom from a thio-cyanate anion, giving a square-planar geometry. There are long-range inter-actions between the Cu atom and S [3.151 (5) Å] and Br [3.929 (5) Å] atoms above and below the square plane.
The Cu(II) atom in the title compound, [Cu(NCS)(2)(C(16)H(15)N(3)O)], is bonded to the N atoms of two thio-cyanate ions, and is N,N'-chelated by the Schiff base ligand. The four N atoms surround the metal atom to form a distorted square; the square environment is distorted towards a square pyramid by a long Cu⋯O inter-action. In the crystal, two C atoms of the pyrrolidin-2-one ring are disorder...
UV-Vis measurements showed that the interaction of pseudohalide anions, A(-) (A(-) = N3(-), NCO(-), NCS(-)), with electrophilic bromocarbons, R-Br (R-Br = CBr4, CBr3NO2, CBr3CONH2, CBr3H, CBr3F, CBr3CN or C3Br2F6), in solution results in formation of [R-Br, A(-)] complexes. These associates are characterized by intense absorption bands in the 200-350 nm range showing distinct Mulliken correlati...
The asymmetric unit of the title compound, [Zn(NCSe)(2)(C(4)H(4)N(2))(2)](n), consists of one Zn(2+) cation located on a special position with site symmetry 2/m, one seleno-cyanate anion on a mirror plane and one pyrimidine ligand on a twofold rotation axis. The zinc cation is coordinated by six N atoms of four pyrimidine ligands and two N-bonded seleno-cyanate anions in mutually trans orientat...
In the title compound, [Sn(CH(3))(2)(NSC)(2)(C(24)H(16)N(2))], a 1:1 adduct of dimethyl-tin diisothio-cyanate with 4,7-diphenyl-1,10-phenanthroline, the Sn(IV) atom shows a slightly distorted octa-hedral SnC(2)N(4) coordination. The methyl groups are trans to each other in the octa-hedron surrounding the metal atom [C-Sn-C = 176.61 (12)°].
In the title salt, [Cu(NCS)(C(6)H(6)N(4))(2)]Cl, the Cu(II) atom adopts a five-coordinated square-pyramidal geometry consisting of an N atom from a thio-cyanate anion and four N atoms from two chealting biimidazole ligands. The thio-cyanate ligand occupies the axial position and is, like the Cu(II) centre, located on a mirror plane. The cation and anion are linked into a linear chain by N-H⋯S a...
Two-electron reductive carbonylation of the uranium(VI) nitride [U(Tren(TIPS))(N)] (2, Tren(TIPS)=N(CH2CH2NSiiPr3)3) with CO gave the uranium(IV) cyanate [U(Tren(TIPS))(NCO)] (3). KC8 reduction of 3 resulted in cyanate dissociation to give [U(Tren(TIPS))] (4) and KNCO, or cyanate retention in [U(Tren(TIPS))(NCO)][K(B15C5)2] (5, B15C5=benzo-15-crown-5 ether) with B15C5. Complexes 5 and 4 and KNC...
In the title compound, [Cu(NCS)(2)(C(12)H(8)N(4)S)(2)(H(2)O)(2)]·2H(2)O, the Cu atom is located on an inversion center and displays an octa-hedral geometry. Two N atoms of two different 2,5-di-4-pyridyl-1,3,4-thia-diazole ligands and two N atoms from two separate thio-cyanate mol-ecules form the equatorial plane, while two coordinated water mol-ecules are in axial positions. The crystal structu...
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