scholarly journals Corrosion and Vapor Transport Involving Novel Manganese Oxo-Species: The Characterization of Molecular Cs2MnO4 by Mass Spectrometry and Matrix Isolation IR Spectroscopy

2002 ◽  
Vol 2002-19 (1) ◽  
pp. 437-447
Author(s):  
B. Farrow
Keyword(s):  
Mass Spectrometry ◽  
Ir Spectroscopy ◽  
Matrix Isolation ◽  
Vapor Transport

Characterization of molecular alkali metal iodates by mass spectrometry and matrix isolation IR spectroscopy

1992 ◽  
Vol 96 (24) ◽  
pp. 9738-9741 ◽  
Author(s):  
Karen R. Biggs ◽  
Robin A. Gomme ◽  
John T. Graham ◽  
J. Steven Ogden
Keyword(s):  
Mass Spectrometry ◽  
Ir Spectroscopy ◽  
Alkali Metal ◽  
Matrix Isolation

Synthesis and Characterization of Tetrakis(pentafluoroethyl)germane

Synthesis ◽  
2017 ◽  
Vol 49 (11) ◽  
pp. 2389-2393 ◽  
Author(s):  
Stefanie Pelzer ◽  
Beate Neumann ◽  
Hans-Georg Stammler ◽  
Nikolai Ignat’ev ◽  
Reint Eujen ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Ir Spectroscopy ◽  
Diffraction Analysis ◽  
Spectroscopic Characterization ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Comprehensive Characterization

This paper describes the synthesis and comprehensive characterization of tetrakis(pentafluoroethyl)germane. In addition to a complete NMR spectroscopic characterization, including the rarely used 73Ge NMR spectroscopy, Ge(C2F5)4 was studied by IR spectroscopy, mass spectrometry as well as X-ray diffraction analysis. A 73Ge NMR investigation as well as an X-ray diffraction study of the related germane Ge(CF3)4 are also included.

C8H6 Thermal Chemistry. 7-Methylenecyclohepta-1,3,5-dienyne (Heptafulvyne) by Flash Vacuum Thermolysis–Matrix Isolation. Chemical Activation in the Rearrangements of Phenylenedicarbenes and of Benzocyclobutadiene to Phenylacetylene

2014 ◽  
Vol 67 (9) ◽  
pp. 1174 ◽  
Author(s):  
Arvid Kuhn ◽  
Daisuke Miura ◽  
Hideo Tomioka ◽  
Curt Wentrup
Keyword(s):  
Mass Spectrometry ◽  
Ir Spectroscopy ◽  
Chemical Activation ◽  
Matrix Isolation ◽  
Diazo Compound ◽  
Thermal Chemistry ◽  
Line Mass ◽  
On Line

Methylenecycloheptadienyne 11 (heptafulvyne) is obtained very cleanly by flash vacuum thermolysis (FVT) of the diazobenzocyclobutene precursor 8 at 400°C followed by isolation as a neat solid at 77 K or in an Ar matrix at 7–10 K. Compound 11 is a yellow solid, stable till ~–100°C in the neat state. The diazo compound itself (2) is observable by IR spectroscopy following mild decomposition of the tosylhydrazone salt 1 at 115°C. FVT of 8 at 200°C also generates diazo compound 2 as observed by IR spectroscopy and on-line mass spectrometry. FVT of 8 at 600–800°C causes rearrangement of 11 to phenylacetylene 12 and benzocyclobutadiene 13. Mechanisms for the rearrangements are proposed. Facile rearrangement of benzocyclobutadiene to phenylacetylene is ascribed to chemical activation, which is also seen to be involved in the rearrangement of p-, m-, and o-phenylenebiscarbenes 25–27 to phenylacetylene 12.

Synthesis and characterization of manganese complexes of the dibenzophospholyl ligand

2001 ◽  
Vol 79 (9) ◽  
pp. 1321-1329 ◽  
Author(s):  
Andreas Decken ◽  
Melanie A Neil ◽  
Frank Bottomley
Keyword(s):  
Mass Spectrometry ◽  
Ir Spectroscopy ◽  
Phosphorus Atom ◽  
Manganese Complexes ◽  
Synthesis And Characterization ◽  
Carbonyl Complexes ◽  
X Ray ◽  
Manganese Carbonyl

Manganese carbonyl complexes bearing dibenzophospholyl (DBP) and 1-phenyldibenzophosphole (Ph-DBP) ligands have been prepared. Reaction of Li-DBP with Mn(CO)5Br gave (µ2-DBP)(µ2-Br)Mn2(CO)8, while reaction of bis(1,1'-dibenzophospholyl) and Mn2(CO)10 yielded (µ2-DBP)2Mn2(CO)8. The phosphine adducts (Ph-DBP)Mn2(CO)9 and (Ph-DBP)2Mn2(CO)8 were obtained by reaction of Ph-DBP and Mn2(CO)10. The ligands are σ-bonded through the phosphorus atom in all complexes. The compounds were characterized by 1H, 13C, and 31P NMR and IR spectroscopy, mass spectrometry, and X-ray diffraction.Key words: dibenzophospholyl, dibenzophosphole, manganese, heterocycle.

Synthesis and characterization of Cu(II)-halide 1-methylimidazole complexes

2016 ◽  
Vol 71 (2) ◽  
pp. 105-112 ◽  
Author(s):  
Michael Hörmannsdorfer ◽  
Ulrike Kahl ◽  
Tom Nilges
Keyword(s):  
Mass Spectrometry ◽  
Ir Spectroscopy ◽  
Single Crystal ◽  
Thermal Analyses ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

AbstractThree new complexes of Cu(II) halides (Cl, Br) with 1-methylimidazole (MIm), [Cu(MIm)4]Br2 (1), [Cu(MIm)4Br]Br · H2O (2), and [Cu(MIm)6]Cl2 · 2H2O (3) have been synthesized in ethanol. Their crystal structures have been determined by single-crystal X-ray diffraction. FT-IR spectroscopy, mass spectrometry, and thermal analyses were applied to characterize the compounds.

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