Metallaborane Reaction Chemistry. Part 3. Reaction of Carbon Monoxide with [6-H-6-(PPh3)-6P,5C-μ-(2-Ph2PC6H4)-nido-6-IrB9H12] and the Isolation and Characterisation of Two arachno-6-Monoiridadecaboranes [6-(CO)-6-H-6,9-(PPh3)2-6P,5C-μ-(2-Ph2PC6H4)-arachno-6-IrB9H11] and sym-[6-(CO)-6-H-6,6-(PMe2Ph)2-9-(PPh3)-arachno-6-IrB9H11]

1997 ◽  
Vol 62 (8) ◽  
pp. 1239-1253 ◽  
Author(s):  
Jonathan Bould ◽  
Paul Brint ◽  
John D. Kennedy ◽  
Mark Thornton-Pett ◽  
Lawrence Barton ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Nmr Spectroscopy ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
Reaction System ◽  
Structural Type ◽  
X Ray Diffraction ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray

[6-(CO)-6-H-6,9-(PPh3)2-6P,5C-μ-(2-Ph2PC6H4)-arachno-6-IrB9H11] (1) results from the reaction of [6-H-6-(PPh3)-6P,5C-μ-(2-Ph2PC6H4)-nido-6-IrB9H12] (2) with carbon monoxide in refluxing benzene. It is characterised by NMR spectroscopy and by single-crystal X-ray diffraction analysis. Crystals were triclinic, space group P1, with a = 10.688(2), b = 13.114(3), c = 22.356(5) Å, α = 78.33(2), β = 89.482(10), γ = 70.884(12)°, and Z = 2. The compound is of the little-examined arachno ten-vertex metallaborane structural type. A second compound of this type, [6-(CO)-6-H-6,6-(PMe2Ph)2-9-(PPh3)-arachno-6-IrB9H11] (3), isolated from a reaction system involving [Ir(CO)Cl(PPh3)2], PMe2Ph and the [nido-B9H12]- anion, has also been characterised crystallographically. Crystals were triclinic, space group P1, with a = 10.389(1), b = 10.511(1), c = 19.699(3) Å, α = 75.03(1), β = 85.53(1), γ = 74.88(1)°, and Z = 2.

Die Kristallstruktur des Tetraphenylphosphonium-Monoiodohexahydroc/ oso-Hexaborats [P(C6H5)4][B6H6I] / The Crystal Structure of Tetraphenylphosphonium Monoiodohexahydro-closo-hexaborate [P(C6H5)4][B6H6I]

1994 ◽  
Vol 49 (12) ◽  
pp. 1809-1812 ◽  
Author(s):  
W. Preetz ◽  
D. Sonnak
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
X Ray Diffraction ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray

The crystal structure of [P(C6H5)4][B6H6I] has been determined by single crystal X-ray diffraction analysis; triclinic, space group P1 with a = 7.5137(9), b = 12.623(2), c = 13.6363(13) Å, α = 87.787(13)°, β = 83.836(13)°, γ = 88.156(10)°. The additional H atom could be refined with B-H distances of 1.13 to 1.31 A above one of the facettes of the B6 octahedron opposite to the I substituent.

Eleven-Vertex Polyhedral Dicarbaplatinaborane Chemistry. Aspects of the Chemistry of Some closo-Structured {1,2,3-PtC2B8} Species and Some Related Compounds

1993 ◽  
Vol 58 (9) ◽  
pp. 2090-2120 ◽  
Author(s):  
John D. Kennedy ◽  
Bohumil Štíbr ◽  
Tomáš Jelínek ◽  
Xavier L. R. Fontaine ◽  
Mark Thornton-Pett
Keyword(s):  
Nmr Spectroscopy ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
General Behaviour ◽  
Space Group ◽  
X Ray ◽  
Metal Bonding ◽  
Related Compounds

The reaction of the ten-vertex nido anions [6,9-C2B8H10]2-, [6-Me-6,9-C2B8H9]2- and [6-Ph-6,9-C2B8H9]2- with [cis-PtCl2(PMe2Ph)2] in CH2Cl2 yields the yellow crystalline closo-structured eleven-vertex compounds [2-X-1,1-(PMe2Ph)2-1,2,3-PtC2B8H9], where X = H (compound 1), Me (compound 2), or Ph (compound 3) in yields of 58 88%. These compounds have been characterized by multielement NMR spectroscopy and, in the case of compounds 1 and 2, by single-crystal X-ray diffraction analysis. Crystals of compound 1 were monoclinic, space group P21/n, with a = 947.6(1), b = 1 547.7(3), c = 1 804.0(3) pm, β = 104.78(1)°, and Z = 4, solved and refined to R (Rw) = 0.0216 (0.0234) with 4 200 unique reflections I > 2.0 σ(I). Crystals of compound 2 were monoclinic, space group I2/a (= C2/c), with a = 1 824.8(2), b = 1 016.8(2), c = 1 328.2(3) pm, β = 101.48(2)°, and Z = 4, solved and refined to R (Rw) = 0.0442 (0.0474) with 2 057 unique reflections I > 2.0 σ(I). The NMR and X-ray results reveal that the closed eleven-vertex compounds [2-X-1,1-(PR3)2-1,2,3-PtC2B8H9] exhibit a previously unsuspected but very free contrarotational fluxionality within the constrains of their η6-carborane-to-metal bonding that is accompanied by a marked flexing of the η6-{C2B8H9X} moiety between nido and arachno ten-vertex geometries and electronic characteristics. The structural and bonding implications are discussed and elucidated specifically with reference to the NMR and geometrical charcteristics of [closo-2,3- C2B9H11], [arachno-6,9- C2B8H14] and the [nido-6-X-6,9- C2B8H9]2- anions, together with other pertinent species such as [μ-6,9-(SnMe2)-nido-6,9-C2B8H10] and more generally with reference to other eleven-vertex metallaheteroborano species. The general behaviour patterns thus established are summarized.

Synthesis and structure of the λ 6Si-silicate [Cs(18-crown-6)]2[Si(OSO2CH3)6]

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Isabelle Georg ◽  
Michael Bolte ◽  
Matthias Wagner ◽  
Hans-Wolfram Lerner
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Single Crystal ◽  
State Structure ◽  
X Ray Diffraction ◽  
Triclinic Space Group ◽  
Space Group ◽  
Solid State Structure ◽  
X Ray

Abstract The λ 6Si-silicate [Cs(18-crown-6)]2[Si(OSO2CH3)6] (1) was synthesized by treatment of Si2Cl6 with Cs[OSO2CH3] in the presence of 18-crown-6. Compound 1 is the first example of a λ 6Si-silicate with a methanesulfonate ligand. It was characterized by NMR spectroscopy and by single-crystal X-ray diffraction. The solid-state structure of 1 consists of discrete [Si(OSO2CH3)6]2– anions and two [Cs(18-crown-6)]+ cations (triclinic space group, P 1 ¯ $P\overline{1}$ , Z = 1).

Growth and characterization studies of a novel luminescent acetate-bridged barium(II) complex: poly[(μ-diacetato)(tetraphthalato)pentabarium(II)]

2016 ◽  
Vol 39 (5-6) ◽  
Author(s):  
Ushakumari S. Soumya Mol ◽  
Remya M. Nair ◽  
Ravikumar Drisya ◽  
Prasanna R. Satheesh Chandran ◽  
Malieyeckal R. Sudarsanakumar ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
X Ray Diffraction ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
Diffusion Technique ◽  
Characterization Studies ◽  
Gel Diffusion

AbstractA novel coordination polymer, poly[(μ-diacetato)(tetraphthalato)pentabarium(II)], with acetate bridged moiety has been successfully grown by gel diffusion technique. Single crystal X-ray diffraction analysis showed that the compound crystallizes in triclinic space group

1,3,5-Triphosphorinane. Synthese und Struktur der Isomeren des 1,3,5-Triphenyl-1,3,5-triphosphorinans/ 1,3,5-Triphosphorinanes. Synthesis and Structure of the Isomers of 1,3,5-Triphenyl-1,3,5-triphosphorinane

2006 ◽  
Vol 61 (5) ◽  
pp. 577-582 ◽  
Author(s):  
Manfred Fild ◽  
Peter G. Jones ◽  
Michael Lorms ◽  
Stefan Jäger
Keyword(s):  
Nmr Spectroscopy ◽  
Single Crystal ◽  
Column Chromatography ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray

The reaction of lithiated Ph(H)PCH2P(H)Ph with (ClCH2)2PPh yields 1,3,5-Triphenyl-1,3,5- triphosphorinane (1) as a mixture of two isomers. The isomers have been separated by column chromatography and characterized by NMR spectroscopy and single crystal X-ray diffraction as the eq-eq-eq (1a) and eq-eq-ax-isomers (1b). (1a) crystallizes with a = 1326.9(3) pm and c = 933.4(3) pm in the rhombohedral space group R3 and displays 3-fold symmetry, showing an eq-eq-eq conformation. (1b) crystallizes in the monoclinic space group P21/c with a = 984.09(12) pm, b = 1757.5(2) pm, c = 1083.13(12) pm, β = 93.329(2)° and displays an ax-eq-eq conformation.

Synthesis and structural characterization of donor-stabilized disubstituted diphenyldithiophosphates of nickel(II)

2014 ◽  
Vol 70 (4) ◽  
pp. 761-767 ◽  
Author(s):  
Sandeep Kumar ◽  
Ruchi Khajuria ◽  
Amanpreet Kaur Jassal ◽  
Geeta Hundal ◽  
Maninder S. Hundal ◽  
...  
Keyword(s):  
Single Crystal ◽  
Chelate Ring ◽  
Donor Ligands ◽  
Monoclinic Space Group ◽  
Bidentate Ligands ◽  
X Ray Diffraction ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray

Donor-stabilized addition complexes of nickel(II) with disubstituted diphenyldithiophosphates, [{(ArO)2PS2}2NiL2] {Ar = 2,4-(CH3)2C6H3[(1), (5)], 2,5-(CH3)2C6H3[(2), (6)], 3,4-(CH3)2C6H3[(3), (7)] and 3,5-(CH3)2C6H3[(4), (8)];L= C5H5N [(1)–(4)] and C7H9N [(5)–(8)]}, were successfully isolated and characterized by elemental analysis, magnetic moment, IR spectroscopy and single-crystal X-ray analysis. Compound (4) crystallizes in the monoclinic space groupP21/nwhereas compounds (7) and (8) crystallize in the triclinic space group P\bar 1. The single-crystal X-ray diffraction analysis of (4), (7) and (8) reveals a six-coordinated octahedral geometry for the NiS4N2chromophore. Two diphenyldithiophosphate ions act as bidentate ligands with their S atoms coordinated to the Ni centre. Each of them forms a four-membered chelate ring in the equatorial plane. The N atoms from two donor ligands are axially coordinated to the Ni atom.

scholarly journals A pyridyl-substituted cyclodisilazane [(Apy)2(μ-SiMe)2] (ApyH2 = 2-aminopyridine)

IUCrData ◽  
2017 ◽  
Vol 2 (3) ◽  
Author(s):  
Rui Li ◽  
Xin-E Duan ◽  
Wei Cao ◽  
Xue-Hong Wei
Keyword(s):  
Nmr Spectroscopy ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
Title Compound ◽  
Membered Ring ◽  
Side Product ◽  
Inversion Center ◽  
X Ray Diffraction ◽  
X Ray ◽  
Compound C

The title compound, C14H20N4Si2 or [(Apy)2(μ-SiMe)2], systematic name 2-[2,2,4,4-tetramethyl-3-(pyridin-2-yl)-1,3,2,4-diazadisiletidin-1-yl]pyridine, was obtained as a side product from the reaction of 2-amino-pyridine with LiBu n followed by the addition of Me2NMe2SiCl in hexane. The compound was characterized by single-crystal X-ray diffraction analysis and NMR spectroscopy. The title compound lies about an inversion center at the centroid of the cyclodisilazane ring. The four-membered Si2N2 core is strictly planar with the two pyridyl rings placed centrosymmetrically on either side of the Si2N2 plane and are almost coplanar with the central four-membered ring.

Structural Systematics of Metal Acetylide Complexes. II. X-Ray Studies of Some Nickel σ-Acetylide Complexes

1998 ◽  
Vol 51 (3) ◽  
pp. 219 ◽  
Author(s):  
Ian R. Whittall ◽  
Mark G. Humphrey ◽  
David C. R. Hockless
Keyword(s):  
Single Crystal ◽  
Least Squares ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Orthorhombic Space Group ◽  
Triclinic Space Group ◽  
Full Matrix ◽  
Space Group ◽  
X Ray ◽  
Trans Influence

The structures of Ni(C≡CR)(PPh3)(η-C5H5) (R = Ph (1), C6H4-4-NO2 (2), 4-C6H4C6H4-4′-NO2 (3), (E)-4-C6H4CH=CHC6H4-4′-NO2 (4), 4-C6H4C≡CC6H4-4′-NO2 (5), 4-C6H4N=CHC6H4-4′-NO2 (6)) have been determined by single-crystal X-ray diffraction studies, refining by full-matrix least-squares analysis. For (1), crystals are triclinic, space group P-1, with a 10·094(2), b13·429(3), c 18·835(5) Å,α 103·24(2), β 91·50(2), γ 90·10(2)°, Z 4, 5844 unique reflections (595 parameters), converging at R 0·033 and Rw 0·024. For (2), crystals are orthorhombic, space group Pna21, with a 16·799(2), b 8·681(2), c 17·485(2) Å, Z 4, 1774 unique reflections (325 parameters), converging at R 0·031 and Rw 0·029. For (3), crystals are monoclinic, space group P 21/c, with a 11·140(3), b 18·282(4), c 15·296(2) Å, β 105·18(2)°, Z 4, 3132 unique reflections (397 parameters), converging at R 0·039 and Rw 0·024. For (4), crystals are monoclinic, space group P 21/n, with a 12·929(7), b 16·953(8), c 15·601(7) Å, β 112·55(3), Z 4, 3023 unique reflections (397 parameters), converging at R 0·039 and Rw 0·025. For (5), crystals are monoclinic, space group P 21/n, with a 12·710(5), b 16·882(3), c 15·693(4) Å, β 111·37(3)°, Z 4, 3216 unique reflections (397 parameters), converging at R 0·035 and Rw 0·030. For (6), crystals are monoclinic, space group P 21/n, with a 12·594(1), b 16·936(2), c 15·611(1) Å, β 112·476(5)°, Z 4, 3564 unique reflections (397 parameters), converging at R 0·038 and Rw 0·041. For structurally characterized 18-electron (cyclopentadienyl)nickel(II) acetylide complexes, statistically insignificant decreases in the average Ni-C(1) distance and trans influence and an increase in the average C(1)-C(2) parameter are observed on introduction of an acceptor substituent at the alkynyl ligand.

Reactions between Co(II), 1,2-bis(diphenylphosphino)ethane, and NaBH3CN in the presence and absence of CO. The crystal structure of bis(cyanotrihydroborato)tetrakis(N,N-dimethylformamide)cobalt(II)

1988 ◽  
Vol 66 (7) ◽  
pp. 1770-1775 ◽  
Author(s):  
David J. Elliot ◽  
Sanna Haukilahti ◽  
David G. Holah ◽  
Alan N. Hughes ◽  
Stanislaw Maciaszek ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Unit Cell ◽  
X Ray Diffraction ◽  
Unit Cell Parameters ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
Cell Parameters ◽  
R Factor

Reactions between Co(II), Diphos, and NaBH3CN lead to Co(BH3CN)2(Diphos)2, 1, or [Co(BH3CN)(Diphos)2]X, 2 (X = ClO4 or BPh4), and, in certain solvents, 2 reacts to produce [Co(CN)(Diphos)2](ClO4). Compound 1 can be reversibly converted to Co(BH3CN)2(DMF)4, 4, via Co(BH3CN)2(Diphos)(DMF). In addition, 1 reacts with CO to form the Co(I) and Co(III) compounds [Co(Diphos)2](CO)]X and [Co(Diphos)2(CN)2]X (X = BH3CN or BPh4). Single crystal X-ray diffraction studies of 4 show that the compound crystallizes in the triclinic space group [Formula: see text], with unit cell parameters a = 7.572(6), b = 9.695(6), c = 9.395(6) Å, α = 81.06(4), β = 68.46(5), γ = 68.19(5)°, V = 595.5 Å3, Z = 1, and dcalcd = 1.202 g cm−3. The structure converged to a conventional R factor of 0.040 for 2841 observations and showed an octahedral arrangement of four O atoms from DMF molecules and two trans N-bound BH3CN groups around the Co(II) center.

scholarly journals Synthesis, Crystal Structure, and Fungicidal Activity of 5-(4-cyclopropyl-5-((3-fluorobenzyl)thio)-4H-1,2,4-triazol-3-yl)-4-methyl-1,2,3-thiadiazole

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Xing-Hai Liu ◽  
Jian-Quan Weng ◽  
Cheng-Xia Tan
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Title Compound ◽  
Fungicidal Activity ◽  
Herbicidal Activity ◽  
X Ray Diffraction ◽  
Triclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
Compound C

A new 1,2,3-thiadiazole compound was synthesized and characterized. The crystal structure of the title compound (C15H14FN5S2, Mr = 347.43) has been determined by single-crystal X-ray diffraction. The crystal is of triclinic, space group P-1 witha=7.0490(14),b=9.0212(18),c=12.799(3) Å,α= 89.97(3)°,β= 82.27(3)°,γ= 73.17(3)°,V= 771.3(3)  Å3, Z = 2, F(000) = 360, Dc = 1.496 g/cm3,μ= 0.036 mm−1, the finalR1= 0.0358, andwR2= 0.0986 for 2204 observed reflections withI>2σ(I). A total of 5697 reflections were collected, of which 2719 were independent (Rint=0.0028). The herbicidal activity of title compound was determined; the results showed that the title compound displayed excellent fungicidal activity.

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