Results 31 to 40 of about 16,490 (145)
Experimental and Computational Raman and SERS Study of Acid Blue 113
Journal of Raman Spectroscopy, Volume 57, Issue 2, Page 239-254, February 2026.The vibrational features of AB‐113 were investigated through experimental and theoretical analyses. SERS spectra showed enhanced responses under resonant excitation, especially at 532 and 632.8 nm, enabling identification limits as low as 1.0 × 10−8 mol L−1.
Thayla C. A. Coelho +2 more
wiley +1 more source
Angewandte Chemie, Volume 137, Issue 7, February 10, 2025.Connecting two pro‐diradicaloid species, namely cyclopenta[h,i]aceanthrylene, through an acetylene bridge has been shown to increase the cumulene character in one‐dimensional acetylene‐based conjugates. Spectroscopic analysis and calculations indicate significant π‐electronic delocalization during the low temperature‐promoted planarization of the ...
Álvaro Corrochano Fernández +5 more
wiley +2 more sources
Separations, 2023 Red wine contains polyphenols which are extracted during the winemaking process. However, winemaking is not an extraction; therefore, the resulting byproducts still have a substantial polyphenol content.
Tellez-Robles Daniela +6 more
doaj +1 more source
New Phytologist, Volume 249, Issue 1, Page 448-459, January 2026.Summary Mycorrhizal associations between fungi and plants are a fundamental aspect of terrestrial ecosystems. Mycorrhizas occur in c. 85% of extant plants, yet their geological record remains sparse. Rare fossil evidence from early terrestrial environments offers crucial insights into these ancient symbioses, but visualizing fossil fungi at the ...
Christine Strullu‐Derrien +7 more
wiley +1 more source
FUNDAMENTOS DE LA ESPECTROSCOPÍA RAMAN HETERODINA [PDF]
, 2018 "A diferencia de la Espectroscopía tradicional, en la Espectroscopía Heterodina Espacial (SHS, por su iniciales en inglés de “Spatial Heterodyne Spectrometer”) las frecuencias espaciales de las franjas no son inversamente proporcionales a la longitud de ...
Bruno Saucedo Orozco
core
Química Cuántica y Espectroscopía. Temas 1 a 9
, 2012 Apuntes de los temas 1 a 9 de la asignatura "Química Cuántica y Espectroscopía"
Sancho-Garcia, Juan-Carlos +1 more
core +1 more source
Journal of Raman Spectroscopy, Volume 56, Issue 11, Page 1203-1214, November 2025.Palynofacies assemblages from the onshore Potiguar Basin display a wide thermal maturity range, with vitrinite reflectance (%Ro) values of 0.46–2.72 measured from nine samples at depths of 1059–4443 m. A strong correlation exists between %Ro and Raman parameters, specifically the G‐band's full width at half maximum.
Gabriel A. Barberes +14 more
wiley +1 more source
Resonance Raman Effect in Copper Carbonate Minerals Azurite and Malachite
Journal of Raman Spectroscopy, Volume 56, Issue 11, Page 1154-1161, November 2025.This study employs Raman spectroscopy to examine the vibrational characteristics of azurite and malachite, specifically focusing on the stretching modes of the carbonate anion present in their structures. The results reveal a potential resonance Raman effect, characterized by an unexpected enhancement of the asymmetric stretching mode compared to the ...
Julliana F. Alves +2 more
wiley +1 more source
Química Cuántica y Espectroscopía. Tema 10: Interacción materia-radiación
, 2012 Apuntes del tema 10: Características generales de la Espectroscopía (Descifrando las claves de la interacción materia-radiación)
Sancho-Garcia, Juan-Carlos
core +1 more source
Revista de Investigación Agraria y Ambiental• Contextualización: las actividades antropogénicas influyen en el ciclo de nitrógeno y fósforo en aguas superficiales, siendo un problema ambiental significativo.
Jean Carlos Ospino Jiménez +4 more
doaj +1 more source