Ketenes from N-(2-Pyridyl)amides

2015 ◽  
Vol 68 (4) ◽  
pp. 687 ◽  
Author(s):  
Carsten Plüg ◽  
Hussein Kanaani ◽  
Curt Wentrup
Keyword(s):  
Ft Ir ◽  
Ir Spectroscopic ◽  
Spectroscopic Characterisation

Methoxycarbonylketene 4a, methoxycarbonyl(methyl)ketene 4b, chloroketene 4c, cyanoketene 4d, diphenylketene 4e, and 2-pyridylketene 4f have been generated by flash vacuum thermolysis of the corresponding 2-pyridylacetamide derivatives 3a–f and isolated in Ar matrices for FT-IR spectroscopic characterisation. The N-(2-pyridyl)-2-pyridylacetamide 3f yielded 2-pyridyl isocyanate in addition to 2-pyridylketene.

Raman and FT-IR spectroscopic characterisation of flux grown KTiOPO4 and KRbTiOPO4 non-linear optical crystals

1997 ◽  
Vol 49 (3) ◽  
pp. 204-210 ◽  
Author(s):  
K. Vivekanandan ◽  
S. Selvasekarapandian ◽  
P. Kolandaivel ◽  
M.T. Sebastian ◽  
S. Suma
Keyword(s):  
Optical Crystals ◽  
Non Linear ◽  
Ft Ir ◽  
Linear Optical ◽  
Ir Spectroscopic ◽  
Spectroscopic Characterisation

Spectral Investigation on the Growth and Characterization of NLO Crystals of Thiourea Succinic Acid Single Crystal.

2015 ◽  
Vol 2 (2) ◽  
pp. 70-73
Author(s):  
Kannan.P ◽  
Thambidurai.S ◽  
Suresh.N
Keyword(s):  
Single Crystal ◽  
Succinic Acid ◽  
Slow Evaporation Technique ◽  
Absorption Studies ◽  
Dta Analysis ◽  
Evaporation Technique ◽  
Ft Ir ◽  
Ir Spectroscopic ◽  
Thermal Stability Of

Growth of optically transparent single crystals of thiourea succinic acid (TUSA) was grown successfully from aqueous solution by slow evaporation technique. The crystal structure was elucidated using the single crystal XRD. The various functional groups and the modes of vibrations were identified by FT-IR spectroscopic analysis. The optical absorption studies indicate that the optical transparency window is quite wide making its suitable for NLO applications. Thermal stability of the crown crystal carried out by TGA-DTA analysis.

scholarly journals Quantitative analysis of doxorubicin hydrochloride and arterolane maleate by mid IR spectroscopy using transmission and reflectance modes

BMC Chemistry ◽  
2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Ranju Bansal ◽  
Ranjit Singh ◽  
Khushpal Kaur
Keyword(s):  
Quantitative Analysis ◽  
Spectroscopic Methods ◽  
Doxorubicin Hydrochloride ◽  
Intermediate Precision ◽  
Solid Dosage ◽  
Ich Guidelines ◽  
Relative Standard ◽  
Ft Ir ◽  
Solid Bulk ◽  
Ir Spectroscopic

Abstract Background Environment-friendly fast and accurate mid-infrared spectroscopic methods have been developed for the quantitative analysis of doxorubicin hydrochloride (DOX) and arterolane maleate (ALM) in bulk and marketed formulations. Both transmittance and reflectance modes have been used for the analysis and a comparison has been drawn for better accuracy. The analytical methods were validated in accordance with International Council for Harmonisation (ICH) guidelines Results The proposed methods have been successfully developed and validated for the quantification of doxorubicin and arterolane maleate in solid bulk and dosage form. High recovery values in both the modes, while analysing DOX and ALM, indicated good accuracy of the methods. The methods showed excellent repeatability and intermediate precision [% RSD (Relative Standard Deviation < 2.0%]. The assay values of the drugs in solid dosage forms were also found close to the labelled claim. Conclusion The proposed Fourier transform infrared (FT-IR) spectroscopic methods were found to be specific, reproducible, valid and could be used as general methods for the quantification of most of the solid drug preparations such as tablets, capsules and powders.

scholarly journals Insulin forms amyloid in a strain-dependent manner: An FT-IR spectroscopic study

2004 ◽  
Vol 13 (7) ◽  
pp. 1927-1932 ◽  
Author(s):  
Wojciech Dzwolak ◽  
Vytautas Smirnovas ◽  
Ralf Jansen ◽  
Roland Winter
Keyword(s):  
Spectroscopic Study ◽  
Dependent Manner ◽  
Ft Ir ◽  
Ir Spectroscopic ◽  
Strain Dependent
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