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Philip M Kiefer

Explore the profile of Philip M Kiefer including associated specialties, affiliations and a list of published articles. Areas
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Articles 8
Citations 34
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Recent Articles
1.
Kiefer P, Daschakraborty S, Pines D, Pines E, Hynes J
J Phys Chem B . 2021 Oct; 125(41):11473-11490. PMID: 34623157
Protonation of the strong base methylamine CHNH by carbonic acid HCO in aqueous solution, HOCOOH···NHCH → HOCOO···HNHCH, has been previously studied ( 2016, 109, 2271-2280; 2016, 109, 2281-2290) via Car-Parinnello...
2.
Aminov D, Pines D, Kiefer P, Daschakraborty S, Hynes J, Pines E
Proc Natl Acad Sci U S A . 2019 Oct; 116(42):20837-20843. PMID: 31570591
Carbonic acid HCO (CA) is a key constituent of the universal CA/bicarbonate/CO buffer maintaining the pH of both blood and the oceans. Here we demonstrate the ability of intact CA...
3.
Daschakraborty S, Kiefer P, Miller Y, Motro Y, Pines D, Pines E, et al.
J Phys Chem B . 2016 Feb; 120(9):2271-80. PMID: 26879554
Protonation by carbonic acid H2CO3 of the strong base methylamine CH3NH2 in a neutral contact pair in aqueous solution is followed via Car-Parrinello molecular dynamics simulations. Proton transfer (PT) occurs...
4.
Daschakraborty S, Kiefer P, Miller Y, Motro Y, Pines D, Pines E, et al.
J Phys Chem B . 2016 Feb; 120(9):2281-90. PMID: 26876428
The protonation of methylamine base CH3NH2 by carbonic acid H2CO3 within a hydrogen (H)-bonded complex in aqueous solution was studied via Car-Parrinello dynamics in the preceding paper (Daschakraborty, S.; Kiefer,...
5.
Pines D, Ditkovich J, Mukra T, Miller Y, Kiefer P, Daschakraborty S, et al.
J Phys Chem B . 2016 Feb; 120(9):2440-51. PMID: 26862781
Carbonic, lactic, and pyruvic acids have been generated in aqueous solution by the transient protonation of their corresponding conjugate bases by a tailor-made photoacid, the 6-hydroxy-1-sulfonate pyrene sodium salt molecule....
6.
Pines D, Keinan S, Kiefer P, Hynes J, Pines E
J Phys Chem B . 2014 Nov; 119(29):9278-86. PMID: 25420059
Infrared spectroscopy measurements were used to characterize the OH stretching vibrations in a series of similarly structured fluoroethanols, RCH2OH (R = CH3, CH2F, CHF2, CF3), a series which exhibits a...
7.
Keinan S, Pines D, Kiefer P, Hynes J, Pines E
J Phys Chem B . 2014 Jul; 119(3):679-92. PMID: 24975617
Infrared spectroscopy has been used to characterize the solvent effect on the OH stretching vibrations νOH of phenol, 1-naphthol, 2-naphthol, 1-hydroxypyrene, and ethanol. We distinguish the dielectric (nonspecific) effect of...
8.
Kiefer P, Pines E, Pines D, Hynes J
J Phys Chem B . 2014 May; 118(28):8330-51. PMID: 24807301
A theory is presented for the proton stretch vibrational frequency νAH for hydrogen (H-) bonded complexes of the acid dissociation type, that is, AH···B ⇔ A(-)···HB(+)(but without complete proton transfer),...