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1.  [1,2-Bis(diphenyl­phosphino)ethane]{2-[bis­(diphenyl­phosphinometh­yl)amino]pyridinium}fluoridohydrazidato­molybdenum(IV) bis­(tetra­fluoridoborate) 
In the crystal structure of the title compound, [MoF(N2H2)(C31H29N2P2)(C26H24P2)](BF4)2, each Mo atom is surrounded by four P atoms of one 1,2-bis­(diphenyl­phosphino)ethane and one 2-[bis­(diphenyl­phosphinometh­yl)amino]pyridinium ligand. The remaining binding sites of the distorted octa­hedron are occupied by a hydrazidate (NNH2 2−) and a fluoride ligand. Two F atoms of an anion are disordered over two positions; the site occupancy factors are ca 0.7 and 0.3.
doi:10.1107/S1600536808008635
PMCID: PMC2961270  PMID: 21202183
2.  [μ-N,N′-Bis(diphenyl­phosphinometh­yl)benzene-1,4-diamine-κ2 P:P′]bis­[(2,2′-bipyridine-κ2 N,N′)silver(I)] bis­(per­chlorate) acetone disolvate 
The title complex, [Ag2(C10H8N2)2(C32H30N2P2)](ClO4)2·2CH3COCH3, is a centrosymmetric dimer with pairs of AgI atoms bridged by N,N′-bis­(diphenyl­phosphinometh­yl)ben­zene-1,4-diamine ligands. In addition, each AgI atom is coordin­ated by one chelating 2,2′-bipyridine ligand, giving a distorted trigonal coordination environment.
doi:10.1107/S1600536809014871
PMCID: PMC2977627  PMID: 21583813
3.  (Triphenyl­phosphine-κP)[1,1,1-tris­(diphenyl­phosphinometh­yl)ethane-κ3 P,P′,P′′]copper(I) tetra­fluoridoborate 
In the title mononuclear CuI complex, [Cu(C18H15P)(C41H39P3)]BF4, the cation has a basic rigid core structure reminiscent of the framework of diamond. The metal atom is coordinated by four P atoms in a distorted tetra­hedral geometry, the distortion arising from the steric hindrance of the phenyl groups. The anion is disordered over two positions, with an occupancy ratio of 0.524 (17):0.476 (17). The cations and anions are closely packed in the crystal and are in h.c.p. arrangements.
doi:10.1107/S1600536810007312
PMCID: PMC2983927  PMID: 21580482
4.  [Bis(diphenyl­phosphino)methane-κ2 P,P′][bis­(diphenyl­phosphinometh­yl)diethoxy­silane-κ2 P,P′]bis­(dinitro­gen)­molybdenum(0) benzene 0.7-solvate 
In the crystal structure of the title compound, [Mo(C25H22P2)(C30H34O2P2Si)(N2)2]·0.7C6H6, the Mo atoms are coordinated by four P atoms and two N atoms in a distorted octa­hedral mode. The two C atoms of one of the two eth­oxy groups are disordered and were refined using a split model and site-occupation factors of 0.7:0.3. The crystal structure contains a benzene solvent mol­ecule with a site occupation of 70%.
doi:10.1107/S1600536808032364
PMCID: PMC2959717  PMID: 21580836
5.  Tetra­chlorido[(diphenyl­phosphino)diphenyl­phosphine oxide-κO]zirconium(IV) benzene monosolvate 
In the title centrosymmetric mononuclear ZrIV compound, [ZrCl4{P(O)(C6H5)2P(C6H5)2}2]·C6H6, the central ZrIV ion is coordinated by two O atoms from two symmetry-related (diphenyl­phosphino)diphenyl­phosphine ligands and four Cl atoms in a distorted octahedral geometry with the four Cl atoms in the equatorial positions. The mol­ecule lies about a center of inversion and the benzene solvent mol­ecule about another center of inversion. The P=O bond [1.528 (2) Å] is slightly longer than a typical P=O double bond (average 1.500 ).
doi:10.1107/S1600536809031882
PMCID: PMC2969906  PMID: 21577468
6.  [μ-N,N,N′,N′-Tetra­kis(diphenyl­phosphino­meth­yl)benzene-1,4-diamine-κ4 P,P′:P′′,P′′′]bis­[bis­(nitrato-κO)palladium(II)] 
The asymmetric unit of the title complex, [Pd2(NO3)4(C58H52N2P4)], contains one half-mol­ecule, in which the central benzene ring is located on a crystallographic centre of inversion. The Pd atom has a distorted square-planar coordination consisting of two P and two O atoms. In the crystal structure, inter­molecular C—H⋯O inter­actions link the mol­ecules into chains, and π–π contacts between the phenyl rings [centroid–centroid distance = 3.928 (3) Å] may further stabilize the structure.
doi:10.1107/S160053680901486X
PMCID: PMC2977633  PMID: 21583819
7.  [2,6-Bis(di-tert-butyl­phosphinometh­yl)­phen­yl-κ3 P,C 1,P′](nitrato-κO)nickel(II) 
The NiII atom in the title compound, [Ni(C24H43P2)(NO3)], adopts a distorted square-planar geometry with the P atoms in a trans arrangement. The compound contains a twofold rotational axis with the nitrate group offset from this axis, except for an O atom of the nitrate group, generating two positions of 50% occupancy for the other atoms of the nitrate group.
doi:10.1107/S1600536808032376
PMCID: PMC2959575  PMID: 21580852
8.  [2,6-Bis(di-tert-butyl­phosphinometh­yl)phenyl-κ3 P,C 1,P′](trifluoro­acetato)palladium(II) 
The PdII atom in the title compound, [Pd(C2F3O2)(C24H43P2)], adopts a distorted square-planar geometry with the P atoms in a trans arrangement, forming two five-membered chelate rings. Four intra­molecular C—H⋯O hydrogen bonds occur. The crystal packing reveals one weak inter­molecular C—H⋯O hydrogen bond, which self-assembles the mol­ecules into infinite chains parallel to the b axis.
doi:10.1107/S1600536810017861
PMCID: PMC2979456  PMID: 21579315
9.  6-(2-Chloro­benzyl­amino)purinium tetra­chlorido(dimethyl sulfoxide-κO)(nitrosyl-κN)ruthenate(III) monohydrate 
The asymmetric unit of the title complex salt, (C12H11ClN5)[RuCl4(NO)(C2H6OS)]·H2O, contains a 6-(2-chloro­benzyl­amino)purinium cation, a tetra­chlorido(dimethyl sulfoxide)nitro­sylruthenate(III) anion and one solvent water mol­ecule. The RuIII atom is octa­hedrally coordinated by four Cl atoms in the equatorial plane, and by a dimethyl sulfoxide O atom and a nitrosyl N atom in axial positions. The cation is an N3-protonated N7 tautomer. Inter­molecular N–H⋯N hydrogen bonds connect two cations into centrosymmetric dimers, with an N⋯N distance of 2.821 (4) Å. The crystal structure also involves N—H⋯O, N—H⋯Cl and O—H⋯Cl hydrogen bonds.
doi:10.1107/S1600536808006673
PMCID: PMC2961006  PMID: 21202003
10.  Chlorido{2-[1-(2-pyridylmethyl­imino)eth­yl]pyrrolato-κ3 N,N′,N′′}copper(II) 
The potential tridentate Schiff base ligand 2-[1-(2-pyridyl­methyl­imino)eth­yl]pyrrole (HL) was synthesized from the condensation of 2-acetyl­pyrrole with 2-amino­methyl­pyridine. The title compound, [Cu(C12H12N3)Cl], was synthesized from HL and copper(II) chloride using triethyl­amine as a base to deprotonate the pyrrole NH group. The title compound is a monomer and the central copper(II) ion is bound to three N atoms of the deprotonated tridentate ligand and to one chloride ion in a square-planar N3Cl coordination.
doi:10.1107/S1600536808006934
PMCID: PMC2960930  PMID: 21202015
11.  Tetra­chlorido(1,10-phenanthroline-κ2 N,N′)platinum(IV) monohydrate 
In the title complex, [PtCl4(C12H8N2)]·H2O, the Pt4+ ion is six-coordinated in a distorted octa­hedral environment by two N atoms of a 1,10-phenanthroline ligand and by four Cl atoms. As a result of the different trans effects of the N and Cl atoms, the Pt—Cl bonds trans to the N atom are slightly shorter than those trans to the Cl atom. The compound displays inter­molecular π–π inter­actions between the six-membered rings, with a centroid–centroid distance of 3.834 Å. There are also weak intra­molecular C—H⋯Cl hydrogen bonds. According to the IR spectrum, solvent water was present in the crystal, but owing to the high thermal motion of the uncoordinated O atom, the H atoms could not be detected.
doi:10.1107/S1600536809002694
PMCID: PMC2968294  PMID: 21581820
12.  Tetra­chlorido(1,10-phenanthroline-κ2 N,N′)platinum(IV) acetonitrile hemisolvate 
The asymmetric unit of the title compound, [PtCl4(C12H8N2)]·0.5CH3CN, contains two crystallographically independent PtIV complexes with very similar geometry and one solvent mol­ecule. In the complexes, each PtIV ion is six-coordinated in a distorted octa­hedral environment by two N atoms of the 1,10-phenanthroline ligand and four Cl atoms. Because of the different trans effects of the N and Cl atoms, the Pt—Cl bonds trans to the N atom are slightly shorter than those trans to the Cl atom. The compound displays numerous inter­molecular π–π inter­actions between six-membered rings, with a shortest centroid-to-centroid distance of 3.654 Å. There are also weak intra- and inter­molecular C—H⋯Cl hydrogen bonds.
doi:10.1107/S1600536809002359
PMCID: PMC2968349  PMID: 21581815
13.  Tetra­chlorido­[N 2,N 2′-(di­methyl­silanedi­yl)bis­(N-tert-butyl-3-methyl­benzimid­amid­ato)-κ2 N 2,N 2′]hafnium(IV) 
The symmetric title mol­ecule, [Hf(C26H40N4Si)Cl4], lies about a twofold rotation axis. The HfIV and Si atoms lie on the rotation axis with all other atoms being in general positions. The HfIV atom is six-coordinated by two N atoms from the N 2,N 2′-(di­methyl­silanedi­yl)bis­(N-tert-butyl-3-methyl­benz­imid­amidate) ligand and four Cl− ions in a slightly distorted octa­hedral geometry. The two amidinate moieties are connected through the central Si atom with Si—N bond length of 1.762 (3) Å, generating the characteristic N—C—N—Si—N—C—N skeleton of a silyl-linked ansa-bis­(amidine) species.
doi:10.1107/S1600536813030328
PMCID: PMC3884991  PMID: 24454166
14.  Tetra­chlorido(4,4′-dimethyl-2,2′-bipyridine-κ2 N,N′)platinum(IV) 
The asymmetric unit of the title compound, [PtCl4(C12H12N2)], contains one half-mol­ecule; a twofold rotation axis passes through the Pt atom and the mid-point of the C—C bond linking the two rings. The PtIV atom is six-coordinated in an octa­hedral configuration by two N atoms of the 4,4′-dimethyl-2,2′-bipyridine ligand and four terminal Cl atoms. In the crystal structure, there are weak π–π inter­actions between pyridine rings, with a centroid–centroid distance of 4.365 (3) Å.
doi:10.1107/S1600536808016796
PMCID: PMC2961848  PMID: 21202769
15.  Tetra­chlorido(2,3-di-2-pyridylpyrazine-κ2 N 1,N 2)platinum(IV) 
In the title complex, [PtCl4(C14H10N4)], the PtIV atom is six-coordinated in an octa­hedral configuration by two N atoms from one 2,3-di-2-pyridylpyrazine ligand and four terminal Cl atoms. Inter­molecular C—H⋯Cl and C—H⋯N hydrogen bonds stabilize the crystal structure.
doi:10.1107/S1600536808007228
PMCID: PMC2960910  PMID: 21202026
16.  8-Hy­droxy-2-methyl­quinolinium tetra­chlorido(pyrazine-2-carboxyl­ato-κ2 N 1,O 2)stannate(IV) methanol monosolvate 
In the title solvated salt, (C10H10NO)[SnCl4(C5H3N2O2)]·CH3OH, the SnIV atom is chelated by the N,O-bidentate pyrazine-2-carboxyl­ate ligand and four chloride ions, and shows a distorted octa­hedral SnNOCl4 coordination at the metal atom. The 8-hy­droxy-2-methyl­quinolinium cation and the anion are linked to the methanol mol­ecules by O—H⋯O, O—H⋯N and N—H⋯O hydrogen bonds, generating a linear chain running along [10]. There are two independent ion pairs and solvent mol­ecules in the asymmetric unit. The crystal studied was a non-merohedral twin with a 41.8 (1)% twin component.
doi:10.1107/S1600536811032296
PMCID: PMC3200866  PMID: 22064808
17.  10-Hy­droxy­benzo[h]quinolin-1-ium tetra­chlorido(pyridine-2-carboxyl­ato-κ2 N,O)stannate(IV) methanol monosolvate 
The reaction of 4-(dimethyl­amino)­pyridine, picolinic acid and stannic chloride yields the title monosolvated salt, (C13H10NO)[SnCl4(C6H4NO2)]·CH3OH. The SnIV atom is N,O-chelated by the picolinate ion in a cis-SnNOCl4 octa­hedral geometry. The cation is linked to the methanol solvent mol­ecule by an O—H⋯O hydrogen bond; the solvent mol­ecule itself is a hydrogen-bond donor to the uncoordinating carboxyl­ate O atom of the anion. The cations and anions are linked by weak N—H⋯Cl inter­actions, forming a chain running along the b axis.
doi:10.1107/S1600536812019605
PMCID: PMC3379083  PMID: 22719304
18.  Bis(cyclo­hexyl­ammonium) tetra­chlorido­(oxalato)stannate(IV) 
The title salt, (C6H14N)2[Sn(C2O4)Cl4], was obtained as a by-product from the reaction between 2C6H14N+·C2O4 2−·1.5H2O and SnCl2·2H2O. The cyclo­hexyl­ammonium cation has a chair conformation. The complex anion consists of an oxalate anion chelating the SnCl4 moiety, resulting in a distorted octa­hedral coordination sphere of the SnIV atom with the O atoms in equatorial cis positions. In the crystal, cations and anions are linked through N—H⋯O and N—H⋯Cl inter­actions into a layered arrangement parallel to (100).
doi:10.1107/S1600536813019284
PMCID: PMC3793702  PMID: 24109289
19.  Tetra­chlorido­(1,10-phenanthroline-κ2 N,N′)tin(IV) 1,2-dichloro­ethane hemisolvate 
The asymmetric unit of the title compound, [SnCl4(C12H8N2)]·0.5C2H4Cl2, contains a tin complex and one disordered half-mol­ecule of the solvent dichloro­ethane [occupancies 0.71 (2):0.29 (2)]. The six coordinate Sn(IV) atom adopts a distorted octa­hedral geometry. π–π inter­actions between adjacent aromatic rings [interplanar distance 3.483 (5) Å] seem to be effective in the stabilization of the crystal packing.
doi:10.1107/S1600536809017346
PMCID: PMC2969692  PMID: 21583047
20.  8-Hydr­oxy-2-methyl­quinolinium tetra­chlorido(quinolin-8-olato-κ2 N,O)stannate(IV) acetonitrile monosolvate 
In the title solvated salt, (C10H10NO)[SnCl4(C9H6NO)]·CH3CN, the SnIV atom is chelated by the N,O-bidentate 8-hydroxy­quinolinate ligand and four chloride ions, generating a distorted SnONCl4 octa­hedral coordination geometry for the metal. In the crystal, the cations are linked to the anions and the solvent mol­ecules by O—H⋯O and N—H⋯N hydrogen bonds, respectively.
doi:10.1107/S160053681000810X
PMCID: PMC2983816  PMID: 21580491
21.  2-(Methoxy­carbon­yl)quinolinium tetra­chlorido(quinoline-2-carboxyl­ato-κ2 N,O)stannate(IV) methanol solvate 
In the title salt, (C11H10NO2)[SnCl4(C10H6NO2)]·CH3OH, the Sn atom is chelated by the quinolincarboxyl­ate unit and it exists in a distorted octa­hedral coordination geometry. The cation is linked to the solvent mol­ecule by an N—H⋯O hydrogen bond; the solvent mol­ecule is linked to the anion by an O—H⋯O hydrogen bond.
doi:10.1107/S1600536810008561
PMCID: PMC2983849  PMID: 21580496
22.  3-Meth­oxy­carbonyl-1-methyl­pyrazinium tetra­chlorido(pyrazine-2-carboxyl­ato-κ2 N 1,O)stannate(IV) 
In the reaction of pyrazine-2-carb­oxy­lic acid and stannic chloride in methanol, one equivalent of the carb­oxy­lic acid is methyl­ated at the 4-amino site and is also esterified, yielding the title salt, (C7H9N2O2)[SnCl4(C5H3N2O2)]. The SnIV atom in the anion is N,O-chelated by a pyrazine-2-carboxyl­ate in a cis-SnNOCl4 octa­hedral geometry.
doi:10.1107/S1600536811001929
PMCID: PMC3051442  PMID: 21522893
23.  8-Hy­droxy-2-methyl­quinolinium tetra­chlorido(pyridine-2-carboxyl­ato-κ2 N,O)stannate(IV) 
In the reaction of pyridine-2-carb­oxy­lic acid and stannic chloride in the presence of 2-methyl-8-hy­droxy­quinoline, the 2-methyl-8-hy­droxy­quinoline is protonated, yielding the title salt, (C10H10NO)[SnCl4(C6H4NO2)]. The SnIV atom in the anion is N,O-chelated by a pyridine-2-carboxyl­ate in a cis-SnNOCl4 octa­hedral geometry. The cation is linked to the anion by an O—H⋯O hydrogen bond.
doi:10.1107/S1600536811001942
PMCID: PMC3051689  PMID: 21522895
24.  8-Hy­droxy-2-methyl­quinolinium tetra­chlorido(quinolin-2-olato-κ2 N,O)stannate(IV) methanol disolvate 
In the reaction of 8-hy­droxy­quinoline, 2-methyl-8-hy­droxy­quinoline and stannic chloride, the 2-methyl-8-hy­droxy­quinoline is protonated, yielding the disolvated title salt, (C10H10NO)[SnCl4(C9H6NO)]·2CH3OH. The SnIV atom in the anion is N,O-chelated by the hy­droxy­quinolinate in a cis-SnNOCl4 octa­hedral geometry. In the crystal, the cation, anion and solvent mol­ecules are linked by N—H⋯O, O—H⋯O and O—H⋯Cl hydrogen bonds, generating a three-dimensional network.
doi:10.1107/S1600536811001954
PMCID: PMC3051736  PMID: 21522896
25.  2-Meth­oxy­carbonyl­pyridinium tetra­chlorido(pyridine-2-carboxyl­ato-κ2 N,O)stannate(IV) 
In the reaction of pyridine-2-carb­oxy­lic acid and stannic chloride in methanol, one equivalent of the carb­oxy­lic acid is protonated at the amino site and is also esterified, yielding the title salt, (C7H8NO2)[SnCl4(C6H4NO2)]. The SnIV atom in the anion is N,O-chelated by a pyridine-2-carboxyl­ate in a cis-SnNOCl4 octa­hedral geometry. The cation is linked to the anion by an N—H⋯O hydrogen bond.
doi:10.1107/S1600536811001930
PMCID: PMC3051751  PMID: 21522894

Results 1-25 (307338)