scholarly journals Dichloro(η6-p-cymene)(P,P-diphenyl-N-propyl-phosphinous amide-κP)ruthenium(II)

Molbank ◽  
10.3390/m1217 ◽  
2021 ◽  
Vol 2021 (2) ◽  
pp. M1217
Author(s):  
Rebeca González-Fernández ◽  
Pascale Crochet ◽  
Victorio Cadierno
Keyword(s):  
Ir Spectroscopy ◽  
Elemental Analysis ◽  
Title Compound ◽  
Room Temperature ◽  
Toluene Solution ◽  
Catalytic Behavior ◽  
Multinuclear Nmr

The title compound, i.e., [RuCl2(η6-p-cymene)(PPh2NHnPr)] (2), was obtained in a 71% yield by reacting a toluene solution of the chlorophosphine complex [RuCl2(η6-p-cymene)(PPh2Cl)] (1) with two equivalents of n-propylamine at room temperature. The aminophosphine complex 2 was characterized by elemental analysis, multinuclear NMR (31P{1H}, 1H and 13C{1H}) and IR spectroscopy. In addition, its catalytic behavior in the hydration of benzonitrile was briefly explored.

Notizen: Cyclotriphosphazen-2-spiro-3′ -cyclodi[phosphadiazan] — Eine Spiroverbindung aus Hexachlortriphosphazen und Dihydrazidothiophosphorsäure-O-phenylester / Cyclotriphosphazene-2-spiro-3′-cyclodi[phosphadiazane] — A Spiro Compound from Hexachlorocyclotriphosphazene and Dihydrazidothiophosphoric Acid 0-Phenylester

1989 ◽  
Vol 44 (5) ◽  
pp. 612-614 ◽  
Author(s):  
Udo Engelhardt ◽  
Ursula Diefenbach
Keyword(s):  
Elemental Analysis ◽  
Title Compound ◽  
Room Temperature ◽  
Spiro Compound

Hexachlorocyclotriphosphazene (Cl2P=N)3 reacts with dihydrazidothiophosphoric acid 0-phenylester C6H5O—P(=S)(NH—NH2)2 in THF in the presence of triethylamine at room temperature to give the spirocyclic title compound, whose constitution has been confirmed by MS, IR, 31P NMR and elemental analysis.

A three-dimensional cyanide-bridged heterometallic coordination polymer: poly[[diacetonitrilediaqua[μ2-3,6-bis(pyridin-2-yl)-1,2,4,5-tetrazine-κ4N1,N6:N3,N4]tetra-μ-cyanido-tetracyanidodimanganese(II)molybdate(IV)] dihydrate]

2014 ◽  
Vol 70 (11) ◽  
pp. 1029-1032 ◽  
Author(s):  
Xiao-Juan Xu
Keyword(s):  
Magnetic Properties ◽  
Ir Spectroscopy ◽  
Coordination Polymer ◽  
Elemental Analysis ◽  
Room Temperature ◽  
Three Dimensional ◽  
Antiferromagnetic Coupling ◽  
X Ray Diffraction ◽  
X Ray ◽  
Magnetic Investigation

A metal coordination polymer, {[Mn2Mo(CN)8(C12H8N6)(CH3CN)2(H2O)2]·2H2O}n, has been synthesized by the reaction of Mn(ClO4)2·6H2O with 3,6-bis(pyridin-2-yl)-1,2,4,5-tetrazine (bptz) and (Bu3N)3[Mo(CN)8] at room temperature. The polymer was characterized by IR spectroscopy, elemental analysis and X-ray diffraction, and the magnetic properties were also investigated. The X-ray diffraction analysis reveals that the compound is a new three-dimensional coordination polymer with a PtS-type network. Magnetic investigation shows antiferromagnetic coupling between adjacent Mn2+cations.

Electronic Structures of Bent, Formally Two-Coordinate Lanthanide(III) Cations

2019 ◽  
Author(s):  
David Mills ◽  
Hannah Nicholas ◽  
Michele Vonci ◽  
Conrad Goodwin ◽  
Richard Winpenny ◽  
...  
Keyword(s):  
Ir Spectroscopy ◽  
Ab Initio Calculations ◽  
Single Crystal ◽  
Ab Initio ◽  
Elemental Analysis ◽  
Electronic Structures ◽  
Magnetic Measurements ◽  
Single Crystal Xrd ◽  
Multinuclear Nmr

<p>Synthesis of bent, formally two-coordinate lanthanide(III) cations. Characterization by multinuclear NMR, EPR, UV/Vis/NIR and ATR-IR spectroscopy, single crystal XRD, magnetic measurements, elemental analysis and ab initio calculations. <b></b></p>

Electronic Structures of Bent, Formally Two-Coordinate Lanthanide(III) Cations

2019 ◽  
Author(s):  
David Mills ◽  
Hannah Nicholas ◽  
Michele Vonci ◽  
Conrad Goodwin ◽  
Richard Winpenny ◽  
...  
Keyword(s):  
Ir Spectroscopy ◽  
Ab Initio Calculations ◽  
Single Crystal ◽  
Ab Initio ◽  
Elemental Analysis ◽  
Electronic Structures ◽  
Magnetic Measurements ◽  
Single Crystal Xrd ◽  
Multinuclear Nmr

<p>Synthesis of bent, formally two-coordinate lanthanide(III) cations. Characterization by multinuclear NMR, EPR, UV/Vis/NIR and ATR-IR spectroscopy, single crystal XRD, magnetic measurements, elemental analysis and ab initio calculations. <b></b></p>

scholarly journals Notizen: Preparation of Dimeric [(η5-tBu3Cp)CoBr]2 and Convenient Synthesis of the Homodinuclear Cobalt Complex [(η5-tBu3Cp)Co]2H3 therefrom.

1995 ◽  
Vol 50 (4) ◽  
pp. 684-686 ◽  
Author(s):  
Jörg J. Schneider ◽  
Ullrich Specht
Keyword(s):  
Ir Spectroscopy ◽  
Elemental Analysis ◽  
Title Compound ◽  
Cobalt Complex ◽  
The Novel ◽  
One Pot ◽  
H Nmr ◽  
Convenient Synthesis ◽  
Crude Reaction Mixture

The title compound [(η5-tBu3Cp)CoBr]2 1 is prepared in a one pot reaction starting from 1,2,4- tBu3-cyclopentadiene followed by metallation and by reaction of the resulting tBu3Cp-K+ anion salt with anhydrous CoBr2 in THF. 1 was isolated from this reaction in 78% yield as black crystals. 1 reacts with LiAlH4 in THF at 0 °C. Subsequent alcoholysis of the crude reaction mixture with ethanol at -78 °C gives the novel trihydride cluster [(η5-tBu3Cp)Co]2H3 2 in 58% isolated yield as black crystals. 2 has been characterized by 1H NMR, ESR, MS, and IR spectroscopy, as well as by elemental analysis.

scholarly journals Indirect quantitative IR assessment of maximal monomolecular deposition of 3-aminopropyltrimethoxysilane on silica gel surface

2014 ◽  
Vol 33 (2) ◽  
pp. 267 ◽  
Author(s):  
Miha Bukleski ◽  
Vladimir Ivanovski
Keyword(s):  
Ir Spectroscopy ◽  
Silica Gel ◽  
Elemental Analysis ◽  
Langmuir Isotherm ◽  
Maximum Load ◽  
Toluene Solution ◽  
Band Intensity ◽  
Drift Spectroscopy ◽  
Oh Groups ◽  
Intensity Characteristic

Quantification of the amount of maximum loaded 3-aminopropyltrimethoxysylil (APS) on a thermally pretreated silica gel (600 ºC) was performed using IR spectroscopy. A possibility to find the maximum load through a construction of a Langmuir isotherm was not possible due to the irreversibility of the chemisorption reaction. The method used in this work was based on the analysis of the toluene solution on the quantity of the non-reacted APTMS after the saturation of the silica gel surface with APS. The process of chemisorption was monitored via the increasing band intensity of CH<sub>2</sub> and NH­<sub>2</sub> modes of the adsorbent and decreasing band intensity characteristic for the free isolated OH groups of silica gel using DRIFT spectroscopy. The obtained results on maximum adsorption are in line with the previously obtained, using carbon elemental analysis and a direct DRIFT method.

Insertion of Chalcogens and Bis(tert-butylisonitrile)palladium(0) into a Strained Ruthenium Half-sandwich Complex

2012 ◽  
Vol 67 (11) ◽  
pp. 1173-1177 ◽  
Author(s):  
Holger Braunschweig ◽  
Alexander Damme ◽  
Jan Mies ◽  
Marius Schäfer
Keyword(s):  
Nmr Spectroscopy ◽  
Ir Spectroscopy ◽  
Elemental Analysis ◽  
X Ray Diffraction ◽  
Sandwich Complex ◽  
X Ray ◽  
Multinuclear Nmr ◽  
Multinuclear Nmr Spectroscopy ◽  
Group 16 ◽  
Half Sandwich

The previously synthesized strained distannadiyl-ansa half-sandwich complex [{k1-SntBu2- SntBu2-(η5-C5H5)}Ru(CO)2] was investigated with respect to its reactivity toward group 16 elements and bis(tert-butylisonitrile)palladium(0). All products were analyzed by multinuclear NMR spectroscopy, IR spectroscopy and elemental analysis. [{k1-SntBu2SSntBu2-(η5-C5H5)}Ru(CO)2] was furthermore characterized by X-ray diffraction.

The Synthesis, Crystal Structure and Spectroscopic Properties of a Dinuclear μ–Pyrazolato–N,N’–Bridged Dinickel(II) Complex of 1,3–Bis(salicylideneamino)propan–2–ol

2004 ◽  
Vol 59 (8) ◽  
pp. 898-902 ◽  
Author(s):  
C. T. Zeyrek ◽  
A. Elmali ◽  
Y. Elerman
Keyword(s):  
Crystal Structure ◽  
Ir Spectroscopy ◽  
Elemental Analysis ◽  
Title Compound ◽  
Spectroscopic Properties ◽  
Monoclinic Space Group ◽  
Nickel Ions ◽  
Space Group ◽  
Cell Parameters ◽  
Pentadentate Ligand

AbstractThe title compound [Ni2(L)(3,5 prz)], prz = pyrazolate with the formally pentadentate ligand L = 1,3-bis(salicylideneamino)propan-2-olate, was synthesized and identified using elemental analysis and IR spectroscopy. It crystallizes in the monoclinic space group P21/c with cell parameters a = 29.873(4), b = 11.131(2), c = 13.166(3) Å , β = 107.770(10)°, V = 4169.0(13) Å3, Z = 4, Dcal = 1.618 Mg/m3. The nickel ions are bridged by the alkoxo group of the ligand and the N atoms of the μ-pyrazolate group. Each nickel(II) ion is coordinated by two N atoms and two O atoms, forming a square with trans-N2O2 geometry. The Ni···Ni distance and the Ni−O−Ni angle are 3.371(1) Å and 126.4(1)°, respectively.

scholarly journals Exploring the Structural Chemistry of Pyrophosphoramides: N,N′,N″,N‴-Tetraisopropylpyrophosphoramide

Chemistry ◽  
2021 ◽  
Vol 3 (1) ◽  
pp. 149-163
Author(s):  
Duncan Micallef ◽  
Liana Vella-Zarb ◽  
Ulrich Baisch
Keyword(s):  
Crystal Structure ◽  
Mass Spectrometry ◽  
Nuclear Magnetic Resonance ◽  
Hydrogen Bonding ◽  
Nmr Spectroscopy ◽  
Ir Spectroscopy ◽  
Room Temperature ◽  
Intermolecular Hydrogen Bonding ◽  
X Ray Diffraction ◽  
X Ray

N,N′,N″,N‴-Tetraisopropylpyrophosphoramide 1 is a pyrophosphoramide with documented butyrylcholinesterase inhibition, a property shared with the more widely studied octamethylphosphoramide (Schradan). Unlike Schradan, 1 is a solid at room temperature making it one of a few known pyrophosphoramide solids. The crystal structure of 1 was determined by single-crystal X-ray diffraction and compared with that of other previously described solid pyrophosphoramides. The pyrophosphoramide discussed in this study was synthesised by reacting iso-propyl amine with pyrophosphoryl tetrachloride under anhydrous conditions. A unique supramolecular motif was observed when compared with previously published pyrophosphoramide structures having two different intermolecular hydrogen bonding synthons. Furthermore, the potential of a wider variety of supramolecular structures in which similar pyrophosphoramides can crystallise was recognised. Proton (1H) and Phosphorus 31 (31P) Nuclear Magnetic Resonance (NMR) spectroscopy, infrared (IR) spectroscopy, mass spectrometry (MS) were carried out to complete the analysis of the compound.

An Elegant Synthetic Route to 3-Cyano-5,6-dihydro-2-ethoxy-4-phenyl-pyrido[2,3-a]carbazoles

2004 ◽  
Vol 59 (1) ◽  
pp. 106-108 ◽  
Author(s):  
Isravel A. Danish ◽  
Karnam J. R. Prasad
Keyword(s):  
Elemental Analysis ◽  
Spectral Methods ◽  
Title Compound ◽  
Sodium Hydride ◽  
Synthetic Route ◽  
Mass Spectral ◽  
Plausible Mechanism

Abstract 2-Benzylidene-1-oxo-1,2,3,4-tetrahydrocarbazoles (1a - e) obtained from the corresponding 1- oxo-1,2,3,4-tetrahydrocarbazoles on reaction with malononitrile in dry benzene with sodium hydride afforded 3-cyano-5,6-dihydro-2-ethoxy-4-phenyl-pyrido[2,3-a]carbazoles (2a - e) in good yields. A plausible mechanism for the formation of the title compound has been proposed and all the compounds were characterised by IR, NMR, mass spectral methods and elemental analysis.

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