Reaction of nitrogen and sulphur donor ligands with the antitumour complex [{CuL(MeCo2)}2](HL = 2-formylpyridine thiosemicarbazone) and the single-crystal X-Ray structure of [CuL(bipy)]ClO4(bipy = 2,2′-bipyridyl)

1991 ◽  
pp. 1737-1742 ◽  
Author(s):  
Eric W. Ainscough ◽  
Andrew M. Brodie ◽  
John D. Ranford ◽  
Joyce M. Waters
Keyword(s):  
Single Crystal ◽  
Donor Ligands ◽  
X Ray

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.

3D non porous and thermally labile nickel(II) and manganese(II) complexes with hetero donor ligands: Synthesis, X-ray single crystal structure, thermal and luminescent study

2010 ◽  
Vol 363 (8) ◽  
pp. 1843-1848 ◽  
Author(s):  
Sudipta Dalai ◽  
Abhinandan Rana ◽  
Madhusudan Bera ◽  
Durga Sankar Chowdhuri ◽  
Ennio Zangrando
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Single Crystal Structure ◽  
Donor Ligands ◽  
X Ray

Two 3D ZnII Metal–Organic Frameworks with 3- and 8-Fold Interpenetration: Syntheses, Structures, Photodegradation, and Photoluminescent Properties

2017 ◽  
Vol 70 (3) ◽  
pp. 314 ◽  
Author(s):  
Chuan-Bin Fan ◽  
Xiang-Min Meng ◽  
Yu-Hua Fan ◽  
Zi-Ao Zong ◽  
Xiao-Yin Zhang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Metal Organic Frameworks ◽  
Xrd Analysis ◽  
Donor Ligands ◽  
Photoluminescence Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
Metal Organic ◽  
Solvothermal Conditions ◽  
Single Crystal Xrd Analysis

Two novel coordination polymers, namely {[Zn(sbdc)(bmib)]·0.4H2O}n (1) and {[Zn(sbdc)(bibd)]·DMF}n (2) (H2sbdc = 4,4′-stilbenedicarboxylic, bmib = 1,4-bis(2-methylimidazol-1-yl)butane, bibd = 1,1′-(1,4-butanediyl)bis(imidazole), DMF = N,N-dimethylformamide), have been acquired under solvothermal conditions, and have been characterised by elemental analysis, infrared spectra, thermogravimetric analysis, and single-crystal X-ray diffraction (XRD). Single-crystal XRD analysis reveals that 1 shows eight-fold interpenetrating 3D frameworks with a four-connected (66) sqc6 topology and 2 displays four-connected three-fold interpenetrating 3D frameworks. The flexible N-donor ligands play an important role in the construction of the final topological structures for 1 and 2. Furthermore, 1 and 2 exhibit good photodegradation capability and photoluminescence properties.

Allan White and Solvento/Aqua Complexes: ScIII Solvation

2020 ◽  
Vol 73 (6) ◽  
pp. 468
Author(s):  
Eric J. Chan ◽  
Simon A. Cotton ◽  
Jack M. Harrowfield ◽  
Brian W. Skelton ◽  
Alexandre N. Sobolev ◽  
...  
Keyword(s):  
Single Crystal ◽  
Coordination Number ◽  
Coordination Sphere ◽  
Donor Ligands ◽  
Aprotic Solvents ◽  
Aqua Complexes ◽  
X Ray ◽  
Oxygen Donor ◽  
Weakly Coordinating ◽  
Dipolar Aprotic Solvents

Addition of various oxygen-donor ligands (L, all dipolar, aprotic solvents), to a solution of hydrated scandium picrate in weakly coordinating solvents (S), has yielded several crystalline adducts of the form Sc(pic)3(L)m(·nS) in which all ligands L are coordinated, subsequently characterised by a series of single crystal X-ray studies. For L=dmso, m=3 and the picrate anions are all bound as phenoxide-O donor units, while for nmp, dma, tmp, and hmpa, m=2 and one of the bound picrates becomes bidentate through phenoxide- and nitro-O donation. For L=ompa, m=2 and two picrate ligands are bound through phenoxide-O while one is displaced from the primary coordination sphere. All complexes contain six-coordinate ScIII, confirming that this coordination number is a consequence of ligand bulk.

scholarly journals Binuclear Ten-Membered Ring Cyclometallated Complexes of Digold(I) and their Reactions with Iodine and Bromine

2004 ◽  
Vol 59 (11-12) ◽  
pp. 1563-1569 ◽  
Author(s):  
Martin A. Bennett ◽  
Suresh K. Bhargava ◽  
David C. R. Hockless ◽  
Fabian Mohr ◽  
Kellie Watts ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Single Crystal ◽  
Structure Analysis ◽  
Membered Ring ◽  
Chelate Complex ◽  
Donor Ligands ◽  
X Ray ◽  
Cyclometallated Complexes

The cyclometallated digold(I) complexes [Au2(μ-2-C6H4CH2PPh2)2] (10) and [Au2(μ-2-CH2C6H4PPh2)2] (11) have been synthesized by the reaction of Li[2-C6H4CH2PPh2] and Li[2-CH2C6H4PPh2], respectively, with [AuBr(PEt3)]. A single crystal X-ray structure analysis of 10 shows the linearly coordinated gold(I) atoms to be separated by 3.0035(9) Å in a puckered ten-membered ring. Both complexes add one mol equivalent of iodine to form initially gold(I)-gold(III) complexes [Au(μ-2-C6H4CH2PPh2)2AuI2] (14a) and [Au(μ-2-CH2C6H4PPh2)2AuI2] (17), which isomerize to the corresponding salts [Au(κ2-P,C-C6H4CH2PPh2)2][AuI2] (13a) and [Au(κ2-P,C-CH2C6H4PPh2)2][AuI2] (16). In 13a the gold(III) cation is planar coordinated by a pair of chelate P-C donor ligands, the phosphorus and carbon atoms being, separately, mutually cis, as shown by X-ray structural analysis. From the reaction of 10 with 2 mol equivalents of bromine, the neutral chelate complex [AuBr2(κ2-P,C-C6H4CH2PPh2)] (15) has been isolated and structurally characterized.

scholarly journals Synthesis and Structural Characterization of ‘Non-VSEPR’ Structures of Oxo-Tungsten Complex

2011 ◽  
Vol 8 (s1) ◽  
pp. S323-S329
Author(s):  
Shahriare Ghammamy ◽  
Hajar Sahebalzamani
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Structural Characterization ◽  
Direct Methods ◽  
Donor Ligands ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
X Ray ◽  
Cis And Trans

The crystal structure of [(CH3)4N]4[WOCl4F][WO3Cl4] was determined by single crystal x-ray diffraction technique. The crystal is monoclinic, space group C 2/m, with a= 28.23(10) Å, b= 11.60(4) Å,c= 13.48(5) Å, β=118.43(7)°, V= 3886(2)Å3, Z=4. The structure was solved by direct methods and refined by least-squares methods to a final R = 0.0512 for 3825 observed reflections with I>2σ(I). In crystal there are two crystallographic distinct anions, both with cis geometry; the O-W-F and O-W-O angles are 97.5(3)° and 103.1(3) ° respectively. All structures are cis configurations that confirm a preference for angles below 90° and 180° between cis and trans σ-donor ligands, respectively.

Organosilver(I) framework assembly with trifluoroacetate and enediyne-functionalized alicycles

2014 ◽  
Vol 70 (1) ◽  
pp. 37-46 ◽  
Author(s):  
Sam C. K. Hau ◽  
Dennis Y. S. Tam ◽  
Thomas C. W. Mak
Keyword(s):  
Single Crystal ◽  
Reaction System ◽  
Donor Ligands ◽  
Supramolecular Network ◽  
Ring Size ◽  
X Ray Diffraction ◽  
Coordination Networks ◽  
X Ray ◽  
Weak Intermolecular Interactions ◽  
Layer Structures

Eight new silver(I) trifluoroacetate complexes based on a series of designed ligands, each featuring an alicyclic ring with enediyne functionality, have been synthesized and characterized by single-crystal X-ray diffraction. Each ethynide terminal is inserted into an Agn(n= 4–5) basket, leading to the generation of coordination chain or layer structures, but the well shielded ethenyl group does not take part in silver-olefin bonding. Variation in ring size of the alicycles is shown to influence the construction of the organosilver(I) coordination networks, which are consolidated by weak intermolecular interactions in the crystal structures. The effect of adding ancillaryN-donor ligands to the reaction system on the coordination and supramolecular network assembly is also investigated.

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