scholarly journals Fast dynamics of a hydrogen-bonding glass forming liquid: Chemical exchange-induced spectral diffusion in 2D IR spectroscopy

2019 ◽  
Vol 150 (12) ◽  
pp. 124507 ◽  
Author(s):  
David J. Hoffman ◽  
Sebastian M. Fica-Contreras ◽  
Michael D. Fayer
Keyword(s):  
Hydrogen Bonding ◽  
Ir Spectroscopy ◽  
Chemical Exchange ◽  
Spectral Diffusion ◽  
Glass Forming ◽  
2D Ir ◽  
Liquid Chemical

scholarly journals Vibrational dynamics and solvatochromism of the label SCN in various solvents and hemoglobin by time dependent IR and 2D-IR spectroscopy

2014 ◽  
Vol 16 (36) ◽  
pp. 19643-19653 ◽  
Author(s):  
Luuk J. G. W. van Wilderen ◽  
Daniela Kern-Michler ◽  
Henrike M. Müller-Werkmeister ◽  
Jens Bredenbeck
Keyword(s):  
Hydrogen Bonding ◽  
Ir Spectroscopy ◽  
Structural Dynamics ◽  
Spectral Diffusion ◽  
Time Dependent ◽  
Vibrational Dynamics ◽  
2D Ir

The vibrational label SCN is used to report on local structural dynamics in a protein revealing spectral diffusion on a picosecond scale. The SCN spectra are compared to the response of methylthiocyanate in solvents with different polarity and hydrogen-bonding capabilities.

Ultrafast Chemical Exchange 2D IR Spectroscopy

2006 ◽  
Author(s):  
Junrong Zheng ◽  
Kyungwon Kwak ◽  
Michael D. Fayer
Keyword(s):  
Ir Spectroscopy ◽  
Chemical Exchange ◽  
2D Ir

2D-IR Spectroscopy of Porous Silica Nanoparticles: Measuring the Distance Sensitivity of Spectral Diffusion

2015 ◽  
Vol 119 (45) ◽  
pp. 25135-25144 ◽  
Author(s):  
Christopher J. Huber ◽  
Samuel M. Egger ◽  
Ivan C. Spector ◽  
Adam R. Juelfs ◽  
Christy L. Haynes ◽  
...  
Keyword(s):  
Ir Spectroscopy ◽  
Silica Nanoparticles ◽  
Porous Silica ◽  
Spectral Diffusion ◽  
2D Ir

Observation and theory of reorientation-induced spectral diffusion in polarization-selective 2D IR spectroscopy

2015 ◽  
Vol 142 (18) ◽  
pp. 184505 ◽  
Author(s):  
Patrick L. Kramer ◽  
Jun Nishida ◽  
Chiara H. Giammanco ◽  
Amr Tamimi ◽  
Michael D. Fayer
Keyword(s):  
Ir Spectroscopy ◽  
Spectral Diffusion ◽  
2D Ir

scholarly journals Hydrogen bonding and Raman, IR, and 2D-IR spectroscopy of dilute HOD in liquid D2O

2007 ◽  
Vol 104 (36) ◽  
pp. 14215-14220 ◽  
Author(s):  
B. Auer ◽  
R. Kumar ◽  
J. R. Schmidt ◽  
J. L. Skinner
Keyword(s):  
Hydrogen Bonding ◽  
Ir Spectroscopy ◽  
2D Ir

scholarly journals Needles in a haystack: H-bonding in an optogenetic protein observed with isotope labeling and 2D-IR spectroscopy

2021 ◽  
Author(s):  
Jeannette Ruf ◽  
Peter Hamm ◽  
David Buhrke
Keyword(s):  
Ir Spectroscopy ◽  
Isotope Labeling ◽  
Vibrational Modes ◽  
2D Ir

Two vibrational modes in a cyanobacterial protein were isolated with isotope labeling and studied with 2D-IR spectroscopy.

scholarly journals Transparent window 2D IR spectroscopy of proteins

2021 ◽  
Vol 155 (4) ◽  
pp. 040903
Author(s):  
Megan C. Thielges
Keyword(s):  
Ir Spectroscopy ◽  
2D Ir

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.

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