The synthesis and structural characterization of a series of triphenyltin(IV) esters of N-arylidene-ω-amino acids

1992 ◽  
Vol 70 (10) ◽  
pp. 2683-2687 ◽  
Author(s):  
Y. C. Toong ◽  
S. P. Tai ◽  
M. C. Pun ◽  
Rosemary C. Hynes ◽  
L. E. Khoo ◽  
...  
Keyword(s):  
Amino Acids ◽  
Spectroscopic Data ◽  
Monoclinic Space Group ◽  
Carboxylate Oxygen ◽  
Trigonal Bipyramidal ◽  
Phenolic Oxygen ◽  
Elemental Analyses ◽  
Methods Of Synthesis ◽  
Adjacent Molecule

Methods of synthesis, elemental analyses, and IR and NMR spectroscopic data are reported for a series of triphenyltin esters of N-salicylidene-ω amino acids of the general formula: Ph3SnOCO(CH2)nN=CHAr (Ar = 2-HOC6H4− and 2-HOC10H6−; n = 1, 2, 3, and 5). The crystal structure of triphenyltin N-salicylidene-6-aminohexanoate was determined. The crystals are monoclinic, space group P21/a, with a = 16.3493(8) Å, b = 9.0675(7) Å, c = 18.8562(14) Å, β = 100.493(5)°, V = 2748.6(3) Å3, Z = 4, and Dcalc = 1.427 Mg m−3. The final discrepancy factors are RF = 0.033, and RW = 0.036 for 2339 significant reflections. This compound, believed typical of the series described, adopts a polymeric trans-O2SnC3 trigonal bipyramidal geometry with the axial positions occupied by a carboxylate oxygen and the phenolic oxygen of an adjacent molecule. These compounds appear to be the first reported triphenyltin(IV) carboxylates with phenolic oxygen bridges.

scholarly journals Synthesis and Characterization of Dibutyltin Compounds with α-Amino Acids

2016 ◽  
Author(s):  
Roberto Santos Barbiéri ◽  
Vilma Reis Terra ◽  
Allan Kardec Carlos Dias ◽  
Walclée De Carvalho Melo ◽  
Daniel Rodrigues Silva
Keyword(s):  
Amino Acids ◽  
Synthesis And Characterization ◽  
Helium Atmosphere ◽  
Octahedral Sites ◽  
Trigonal Bipyramidal ◽  
Elemental Analyses ◽  
In Trans ◽  
Oxygen Atoms

This paper describes the preparation and description of four new complexes [Bu2Sn(AA)Cl] (AA = glycine, DL-valine and L-leucine) and [Bu2SnPhen2] (Phen = DL-phenylalanine) They were characterized by elemental analyses of carbon, hydrogen, nitrogen, chlorine and tin; and by infrared, 119mSn-Mössbauer and 119mSn-RMN spectroscopies, and by the applications of TG and DSC techniques in dynamic helium atmosphere. For the [Bu2Sn(AA)Cl], trigonal bipyramidal tin species, AA were coordinated bidentatedly by the carboxylic oxygen and by the NH2 group. The [Bu2SnPhen2)], with tin atoms in trans-octahedral sites, had the Phen-coordinated by both carboxylic oxygen atoms.

Darstellung und Charakterisierung von einigen unsymmetrischen Chlordiorganophosphanen RR′PCI / Preparation and Characterization of Some Unsymmetrical Chlorodiorganophosphines RR′PCI

1989 ◽  
Vol 44 (4) ◽  
pp. 502-504 ◽  
Author(s):  
Jung Su Han ◽  
Werner Wolfsberger
Keyword(s):  
Spectroscopic Data ◽  
Grignard Reagents ◽  
Elemental Analyses ◽  
C Nmr

Some unsymmetrical chlorophosphines RR′PCI were prepared by the reaction of RPCl2 (R = CH3, C2H5, i-C3H7, C6H5) with Grignard reagents R′MgCl (R′ = c-C5H9, c-C6H11, i-C3H7) and characterized by elemental analyses and spectroscopic data (IR, 31P and 13C NMR).

scholarly journals Darstellung und Charakterisierung der μ3-Oxo-Cluster [Cp3Mo3(CO)4µ-Cl)(µ3-O)] und [Cp3Mo3(µ-CO)3(CO)3(µ3-O)]+ / Synthesis and Characterization of the µ3-Oxo Clusters [Cp3Mo3(CO)4μ-Cl)(μ3-O)] and [Cp3Mo3(μ-CO)3(CO)3(μ3-O)]+

1990 ◽  
Vol 45 (4) ◽  
pp. 508-514 ◽  
Author(s):  
B. Nuber ◽  
W. Schatz ◽  
M. L. Ziegler
Keyword(s):  
Structure Analysis ◽  
Elemental Analysis ◽  
Spectroscopic Data ◽  
Synthesis And Characterization ◽  
Monoclinic Space Group ◽  
Orthorhombic Space Group ◽  
Space Group ◽  
X Ray

[CpMo(CO)3]2 (1) (Cp = cyclopentadienyl) reacts with InCl3 in diglyme to yield the oxo-cluster [Cp3Mo3(CO)4(μ-Cl)(μ3-O)] (2) and the cationic oxo-cluster [Cp3Mo3(μ-CO)3(CO)3(μ3-O)]+ as the salt [Cp3Mo3(μ-CO)3(CO)3(μ3-O)][CpMo(CO)3InCl3] (3). The compounds were characterized by elemental analysis, spectroscopic data and X-ray structure analysis. Compound 2 crystallizes in the orthorhombic space group P212121 with a = 1006.0(3), b = 1244.6(4) and c = 1600.8(5) pm, V = 2004.3 x 106 pm3, Z = 4. Compound 3 crystallizes in the monoclinic space group P 21/m with a = 874.4(8), b = 1407(1) and c = 1500(1) pm, β = 92.95(6) , V = 1843 × 106 pm3, Z = 2.

scholarly journals Synthesis and spectral characterization of selective pyridine compounds as bioactive agents

2021 ◽  
pp. 255-260 ◽  
Author(s):  
Shaban A. A. Abdel-Raheem ◽  
Adel M. Kamal El-Dean ◽  
Reda Hassanien ◽  
Mohamed E. A. El-Sayed ◽  
Mostafa Sayed ◽  
...  
Keyword(s):  
Insecticidal Activity ◽  
Spectroscopic Data ◽  
Sodium Ethoxide ◽  
Spectral Characterization ◽  
Prepared Compound ◽  
Elemental Analyses ◽  
Cowpea Aphid ◽  
Aphis Craccivora Koch ◽  
Bioactive Agents

Starting from 3-cyano-4,6-distyrylpyridin-2(1H)-thione (1), the compound N-(4-chlorophenyl)-2-((3-cyano-4,6-distyrylpyridin-2-yl)thio)acetamide (2) was prepared. Compound (2) underwent cyclization upon heating in ethanolic sodium ethoxide solution to give the corresponding cyclized form 3-amino-N-(4-chlorophenyl)-4,6-distyrylthieno[2,3-b]pyridine-2-carboxamide (3). The elemental analyses and spectroscopic data of compounds (2) and (3) are in agreement with their proposed structures. Their insecticidal activity against cowpea aphid, Aphis craccivora Koch, was studied. The results of insecticidal activity for compounds (2) and (3) against the nymphs and the adults of the tested insects exhibited that compounds (2) and (3) have a higher insecticidal activity than that of acetamiprid, a reference insecticide, after 24 h of treatment.

Synthesis and Structural Characterization of trans-Bis[1,3-bis(methoxyethyl)- 4,5-bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene]dichloropalladium( II)

2007 ◽  
Vol 62 (11) ◽  
pp. 1353-1357 ◽  
Author(s):  
Aytaç Gürhan Gökçe ◽  
Rafet Kılınçarslan ◽  
Muhittin Aygün ◽  
Bekir Çetinkaya ◽  
Santiago García-Granda
Keyword(s):  
Title Complex ◽  
Monoclinic Space Group ◽  
Inversion Center ◽  
X Ray Diffraction ◽  
Donor Side ◽  
X Ray ◽  
Elemental Analyses ◽  
Molecular And Crystal Structures ◽  
C Nmr

A Pd(II) complex of a new N-heterocyclic carbene (NHC) ligand with bulky substituents and functionalized methoxy-donor side arms has been synthesized and characterized by elemental analyses, 1H and 13C NMR, and IR spectroscopy. Molecular and crystal structures of the title complex have been determined by single crystal X-ray diffraction. The compound crystallizes in the monoclinic space group P21/c, with a = 15.927(2), b = 8.489(2), c = 20.309(5) Å, β = 99.213(2)°, Z = 2, Dx = 1.253 g cm−3. The palladium atom is situated on an inversion center. There are several weak intramolecular C-H ··· N/O interactions.

Notizen: Darstellung und Charakterisierung einiger (Cyanmethyl)alkylphenylphosphane R(C6H5)PCH2CN / Preparation and Characterization of Some (Cyanomethyl)alkylphenyl Phosphines R(C6H5)PCH2CN

1991 ◽  
Vol 46 (11) ◽  
pp. 1578-1580 ◽  
Author(s):  
Werner Wolfsberger
Keyword(s):  
Spectroscopic Data ◽  
Elemental Analyses ◽  
C Nmr

Some (cyanomethyl)alkylphenyl phosphines R(C6H5)PCH2CN (R = CH3, C2H5, C3H7, C4H9, i-C4H9, C5H11,) were prepared by the reaction of the corresponding (trimethylsilyl)alkylphenyl phosphines with chloroacetonitrile and characterized by elemental analyses and spectroscopic data (IR; 1H, 31P and 13C NMR).

Five Co-ordinate Complexes of Platinum(II) and Palladium(II)

1973 ◽  
Vol 51 (4) ◽  
pp. 618-623 ◽  
Author(s):  
K. R. Dixon ◽  
A. D. Rattray
Keyword(s):  
Molecular Weight ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Magnetic Resonance Spectroscopy ◽  
Equatorial Plane ◽  
Spectroscopic Data ◽  
Resonance Spectroscopy ◽  
Trigonal Bipyramidal ◽  
Elemental Analyses ◽  
Bipyramidal Structure

Reactions of 1,10-phenanthroline with halogen bridged dinuclear species, [M2X2(PPh2O)2(PPh2OH)2] and [M2X2(PR3)4][BF4]2, give the new five co-ordinate complexes, [MX(PPh2O)(PPh2OH)(Phen)] and [MX(PR3)2(Phen)][BF4], where M = Pd or Pt, X = Cl or Br, Ph = phenyl, and R = ethyl (or phenyl when M = Pd). Decomposition of the [MX(PR3)2(Phen)][BF4] complexes in hot solvents gives the four co-ordinate species, [MX(PR3)(Phen)][BF4]. The complexes are characterized by elemental analyses, molecular weight, and conductance measurements and infrared and nuclear magnetic resonance spectroscopy. The spectroscopic data show that [PtCl(PEt3)2(Phen)][BF4] has a trigonal bipyramidal structure with the phenanthroline and one triethylphosphine in the equatorial plane and a chlorine and a triethylphosphine in the axial positions.

The synthesis and characterization of W(SeMes)4•THF (Mes = mesityl): a possible homoleptic mononuclear tungsten selenolate. Its reaction with CNtBu to yield (tBuNC)(MesSe)2W(μ-Se)2W(SeMes)2(CntBu)

1993 ◽  
Vol 71 (9) ◽  
pp. 1437-1442 ◽  
Author(s):  
Heinz-Bernhard Kraatz ◽  
P. Michael Boorman ◽  
Masood Parvez
Keyword(s):  
Crystalline Material ◽  
Synthesis And Characterization ◽  
Monoclinic Space Group ◽  
Common Edge ◽  
Coordination Environment ◽  
Trigonal Bipyramidal ◽  
Bonding Interaction ◽  
Metal Metal ◽  
Cell Refinement

The reaction of NaSeMes (Mes = mesityl, 2,4,6-(CH3)3C6H2) with WCl4(PPh2Me)2 in THF leads to the formation of W(SeMes)4•THF (1), a possible mononuclear tetrakis(selenolato) complex of tungsten. The identity of the red crystalline material has been confirmed by elemental analysis and NMR spectroscopic methods (1H, 13C, and 77Se NMR). The reaction of W(SeMes)4•THF with tert-butyl isocyanide results in the formation of (tBuNC)(MesSe)2W(µ-Se)2W(SeMes)2(CNtBu) (2). Compound 2 crystallized in the monoclinic space group C2/c (no. 15) with a = 23.933(2) Å,b = 16.776(2) Å, c = 15.595(2) Å, β = 122.98(2)°, and four formula units per unit cell. Refinement by full-matrix least squares gave final residuals of R = 0.038 and Rw = 0.028. The two metal centres in 2 are in a trigonal bipyramidal (tbp) coordination environment. The two tbps are connected via a common edge (axial–equatorial). The W—W bond length of 2.732(1) Å and the diamagnetism of 2 indicate the presence of a metal–metal bonding interaction.

scholarly journals Synthesis and structural characterization of four dichloridobis(cyclopropylalkynylamidine)metal complexes

2018 ◽  
Vol 74 (11) ◽  
pp. 1658-1664
Author(s):  
Sida Wang ◽  
Phil Liebing ◽  
Felix Engelhardt ◽  
Liane Hilfert ◽  
Sabine Busse ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Structural Characterization ◽  
Triple Bond ◽  
Spectroscopic Data ◽  
Central Metal Atom ◽  
Central Metal ◽  
Elemental Analyses ◽  
Hydrolysis Of ◽  
Cl Atoms

Deliberate hydrolysis of lithium cyclopropylalkynylamidinates, Li[c-C3H5—C[triple-bond]C(NR′)2] [R′ = i Pr, Cy = cyclohexyl)], afforded the hitherto unknown neutral cyclopropylalkynylamidine derivatives c-C3H5—C[triple-bond]C—C(NR′)(NHR′) [R′ = i Pr (1), Cy (2)]. Subsequent reactions of 1 or 2 with metal(II) chlorides, MCl2 (M = Mn, Fe, Co), provided the title complexes dichloridobis(3-cyclopropyl-N,N′-diisopropylprop-2-ynamidine)manganese(II), [MnCl2(C12H20N2)2], (3), dichloridobis(3-cyclopropyl-N,N′-diisopropylprop-2-ynamidine)iron(II), [FeCl2(C12H20N2)2], (4), dichloridobis(N,N′-dicyclohexyl-3-cyclopropylprop-2-ynamidine)iron(II), [FeCl2(C18H28N2)2], (5), and dichloridobis(N,N′-dicyclohexyl-3-cyclopropylprop-2-ynamidine)cobalt(II), [CoCl2(C18H28N2)2], (6), or more generally MCl2[c-C3H5—C[triple-bond]C—C(NR′)(NHR′)]2 [R′ = i Pr, M = Mn (3), Fe (4); R′ = Cy, M = Fe (5), Co (6)] in moderate yields (30–39%). Besides their spectroscopic data (IR and MS) and elemental analyses, all complexes 3–6 were structurally characterized. The two isopropyl-substituted complexes 3 and 4 are isotypic, and so are the cyclohexyl-substituted complexes 5 and 6. In all cases, the central metal atom is coordinated by two Cl atoms and two N atoms in a distorted-tetrahedral fashion, and the structure is supported by intramolecular N—H...Cl hydrogen bonds.

Synthesis and Structure Characterization of some Triorganotin Esters of Heteroaromatic Carboxlic Acid and Crystal Structure of Triphenyltin Esters 5-Chloro-6-Hydroxynicotinic Acid

2012 ◽  
Vol 466-467 ◽  
pp. 463-468
Author(s):  
Hong Tao Gao
Keyword(s):  
Structure Characterization ◽  
Linear Polymers ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
X Ray ◽  
Trigonal Bipyramidal ◽  
Ir And Nmr Spectroscopy ◽  
Bipyramidal Structure ◽  
Adjacent Molecule

Reactions of (R3Sn)2O (R=Ph, 2-ClC6H4CH2, 2-FC6H4CH2, 4-CNC6H4CH2) with 5-chloro-6-hydroxynicotinic acid in 1/2 stoichiometry yielded eight triorganotin compounds. These compounds have been characterized by elemental analysis, IR and NMR spectroscopy. The crystal structures of triphenyltin esters of 5-chloro-6-hydroxynicotinic acid were determined by single crystal X-ray diffraction. In the compound, the tin atoms are rendered five-coordinated in a trigonal bipyramidal structure by coordinating though the three phenyl carbon atoms and two oxygen atoms one from carboxylate and other from the phenolic hydroxide. The resulting structure is one-dimensional linear polymers through an interaction between the O atoms of phenolic hydroxide and tin atoms of an adjacent molecule.

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