نتایج جستجو برای: cyanates
تعداد نتایج: 554 فیلتر نتایج به سال:
In the title compound, {(C(12)H(12)N(2))[Fe(NCS)(4)]}(n), each Fe(II) cation is coordinated by four N-bonded and two S-bonded thio-cyanate anions in an octa-hedral coordination mode. The asymmetric unit consists of one Fe(II) cation, located on a center of inversion, as well as one protonated (E)-4,4'-(ethene-1,2-di-yl)dipyridinium dication and two thio-cyanate anions in general positions. The ...
In the title complex, [Ni(C₆H₆N₃O)(NCS)(C₆H₇N₃O)(H₂O)] or [Ni(mpko)(SCN)(mpkoH)(H₂O)] [where mpkoH = 1-(pyrazin-2-yl)ethanone oxime], the Ni(II) cation is in a slightly distorted octa-hedral geometry, being coordinated in the equatorial plane by four N atoms from two different mpkoH ligands, one of which is deprotonated, and by one N atom from a thio-cyanate anion and one O atom from a water mo...
In the title coordination polymer, [Hg(NCS)(2)(C(4)H(5)N(3))], the Hg(II) atom is four-coordinated by one aromatic N atom from a 2-amino-pyrimidine ligand, one S atom from a terminal thio-cyanate ligand, and one S atom and one N atom from a bridging thio-cyanate ligand. The crystal structure features polymeric chains running along the b axis which are stabilized by N-H⋯N hydrogen bonds.
In the title complex, [Cu(NCS)(2)(C(6)H(8)N(2))(2)], the Cu(II) atom, lying on an inversion center, adopts a Jahn-Teller distorted octahedral CuN(6) coordination geometry. The two bidentate 2-amino-methyl-pyridine ligands are coordinated in a trans fashion, while the two thio-cyanate ligands are at the axial positions and coordinate to the Cu atom in a bent mode with a C-N-Cu angle of 127.49 (1...
An efficient synthesis of aryl carbamates was achieved by introducing alcohols into the reaction of palladium-catalyzed cross-coupling of ArX (X = Cl, OTf) with sodium cyanate. The use of aryl triflates as electrophilic components in this transformation allowed for an expanded substrate scope for direct synthesis of aryl isocyanates. This methodology provides direct access to major carbamate pr...
Rabbit erythrocytes were biotinylated by reaction with N-hydroxysuccinimidobiotin; the average level of biotinylation was 25,000 molecules per erythrocyte. These biotinylated cells exhibited a normal survival rate when reinfused into rabbits. Two studies demonstrated that the biotin label was stable in vivo. The first was a double-labeling experiment where the biotinylated erythrocytes were als...
In the crystal structure of the title compound, [Mn(C5H7O2)2(NCS)(C5H5N)], the Mn(3+) cation is coordin-ated by two acetyl-acetonate anions, one terminal thio-cyanate anion and one pyridine ligand within a slightly distorted octa-hedron. The asymmetric unit consists of half a complex mol-ecule with the Mn(3+) cation, the thio-cyanate anion and the pyridine ligand located on a mirror plane. The ...
The asymmetric unit of the title compound, [Cd(2)Cl(2)(NCS)(2)(C(15)H(15)NO(2))(2)](n), contains the Schiff base 2-[(4-methyl-phenyl-imino)meth-yl]-6-methoxy-phenol (HL) ligand, one thio-cyanate and one chloride ligand coordinated to a cadmium centre. The cadmium centers are linked to each other via two thio-cyanate and two chloride bridges alternately, resulting in centrosymmetric zigzag chain...
In the title complex, [Mn(C(5)H(7)O(2))(2)(NCS)(CH(4)O)], the Mn(III) atom has a slightly distorted octa-hedral coordination formed by five O atoms and one N atom. The equatorial positions are occupied by four O atoms of two acetyl-acetonate ligands, while the axial positions are occupied by the N atom of the thio-cyanate anion and the O atom of the methanol mol-ecule. In the crystal structure,...
In the title compound, [Fe(2)(NCS)(4)(H(2)O)(6)]·3C(10)H(8)N(6), the centrosymmetric dinuclear complex contains two Fe(II) ions bridged by two aqua ligand O atoms, forming a four-membered ring. The slightly distorted octa-hedral coordination environment of the two Fe(II) ions is completed by two monodentate aqua ligands and two thio-cyanate ligands. One of the 1,4-bis-(4H-1,2,4-triazol-4-yl)ben...
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