Search Results - "Freedman, Teresa B."

Vibrational Circular Dichroism Shows Unusual Sensitivity to Protein Fibril Formation and Development in Solution by Ma, Shengli, Cao, Xiaolin, Mak, Mimi, Sadik, Adeola, Walkner, Christoph, Freedman, Teresa B, Lednev, Igor K, Dukor, Rina K, Nafie, Laurence A

“…Similar, unusually large vibrational circular dichroism (VCD) spectra in the amide I and II region for aqueous solutions of the proteins lysozyme and insulin…”
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Absolute configuration determination of chiral molecules in the solution state using vibrational circular dichroism by Freedman, Teresa B., Cao, Xiaolin, Dukor, Rina K., Nafie, Laurence A.

“…Advances in the measurement, calculation, and application of vibrational circular dichroism (VCD) for the determination of absolute configuration are…”
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Structure Elucidation and Absolute Stereochemistry of Isomeric Monoterpene Chromane Esters by Batista, João M, Batista, Andrea N. L, Mota, Jonas S, Cass, Quezia B, Kato, Massuo J, Bolzani, Vanderlan S, Freedman, Teresa B, López, Silvia N, Furlan, Maysa, Nafie, Laurence A

“…Six novel monoterpene chromane esters were isolated from the aerial parts of Peperomia obtusifolia (Piperaceae) using chiral chromatography. This is the first…”
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Induced Folding by Chiral Nonplanar Aromatics by Narasimhan, Sri Kamesh, Kerwood, Deborah J, Wu, Lei, Li, Jun, Lombardi, Rosina, Freedman, Teresa B, Luk, Yan-Yeung

“…We report a structural motif based on a C 3-symmetric bowl-shaped core, on which three substituted amino acids on the periphery adopt either a folded or a…”
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Ab Initio VCD Calculation of a Transition-Metal Containing Molecule and a New Intensity Enhancement Mechanism for VCD by He, Yanan, Cao, Xiaolin, Nafie, Laurence A, Freedman, Teresa B

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Stereochemical determination and bioactivity assessment of ( S)-(+)-curcuphenol dimers isolated from the marine sponge Didiscus aceratus and synthesized through laccase biocatalysis by Cichewicz, Robert H., Clifford, Laura J., Lassen, Peter R., Cao, Xiaolin, Freedman, Teresa B., Nafie, Laurence A., Deschamps, Joshua D., Kenyon, Victor A., Flanary, Jocelyn R., Holman, Theodore R., Crews, Phillip

“…Electrospray ionization mass spectrometry-guided isolation of extracts from Didiscus aceratus led to the discovery of several new derivatives of the bioactive…”
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Chirality and Diastereoselection of Δ/Λ-Configured Tetrahedral Zinc Complexes through Enantiopure Schiff Base Complexes: Combined Vibrational Circular Dichroism, Density Functional Theory, 1H NMR, and X-ray Structural Studies by Chamayou, Anne-Christine, Lüdeke, Steffen, Brecht, Volker, Freedman, Teresa B, Nafie, Laurence A, Janiak, Christoph

“…The metal-centered Δ/Λ-chirality of four-coordinated, nonplanar Zn(A∧B)2 complexes is correlated to the chirality of the bidentate enantiopure (R)-A∧B or…”
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Synthesis and Vibrational Circular Dichroism of Enantiopure Chiral Oxorhenium(V) Complexes Containing the Hydrotris(1-pyrazolyl)borate Ligand by Lassen, Peter R, Guy, Laure, Karame, Iyad, Roisnel, Thierry, Vanthuyne, Nicolas, Roussel, Christian, Cao, Xiaolin, Lombardi, Rosina, Crassous, Jeanne, Freedman, Teresa B, Nafie, Laurence A

“…The infrared and vibrational circular dichroism (VCD) spectra of six chiral oxorhenium(V) complexes, bearing a hydrotris(1-pyrazolyl)borate (Tp) ligand, have…”
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Density Functional Theory Calculations of Vibrational Circular Dichroism in Transition Metal Complexes:  Identification of Solution Conformations and Mode of Chloride Ion Association for (+)-Tris(ethylenediaminato)cobalt(III) by Freedman, Teresa B, Cao, Xiaolin, Young, Daryl A, Nafie, Laurence A

“…Density functional theory calculations of the vibrational circular dichroism (VCD) spectra of a transition metal complex,…”
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Structural and Optical Isomers of Nonamethoxy Cyclotriveratrylene:  Separation and Physical Characterization by Luz, Zeev, Poupko, Raphy, Wachtel, Ellen J, Zheng, Hailin, Friedman, Noga, Cao, Xiaolin, Freedman, Teresa B, Nafie, Laurence A, Zimmermann, Herbert

“…The paper concerns the structural and optical isomers of nonamethoxy-tribenzocyclononene (compound 1). In the first part of the paper it is shown that 1 exists…”
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Structure and Absolute Configuration of Nyasol and Hinokiresinol via Synthesis and Vibrational Circular Dichroism Spectroscopy by Lassen, Peter R, Skytte, Dorthe Mondrup, Hemmingsen, Lars, Nielsen, Simon Feldbæk, Freedman, Teresa B, Nafie, Laurence A, Christensen, S. Brøgger

“…The absolute configuration of the norlignan (+)-nyasol was determined to be S by comparison of the experimental vibrational circular dichroism data with…”
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Determination of the absolute configuration and solution conformation of gossypol by vibrational circular dichroism by Freedman, Teresa B., Cao, Xiaolin, Oliveira, Regina V., Cass, Quezia B., Nafie, Laurence A.

“…Vibrational circular dichroism (VCD) measurements and density functional theory (DFT) calculations were used to obtain the first definitive assignment of the…”
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Solution conformations of cyclosporins and magnesium-cyclosporin complexes determined by vibrational circular dichroism by Bodack, Louise A., Freedman, Teresa B., Chowdhry, Babur Z., Nafie, Laurence A.

“…Vibrational circular dichroism (VCD) spectroscopy was used to investigate the solution conformations of cyclosporins A, C, D, G, and H in CDCl3, in the amide I…”
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Near-Infrared and Mid-Infrared Fourier Transform Vibrational Circular Dichroism of Proteins in Aqueous Solution by Ma, Shengli, Freedman, Teresa B., Dukor, Rina K., Nafie, Laurence A.

“…Vibrational circular dichroism (VCD) of a series of proteins in H2O solution with differing secondary structure are reported for the first time in the…”
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Determination of Enantiomeric Excess in Samples of Chiral Molecules Using Fourier Transform Vibrational Circular Dichroism Spectroscopy:  Simulation of Real-Time Reaction Monitoring by Guo, Changning, Shah, Rekha D, Dukor, Rina K, Cao, Xiaolin, Freedman, Teresa B, Nafie, Laurence A

“…The first use of Fourier transform vibrational circular dichroism (FT-VCD) to follow changes in the percent enantiomeric excess (% EE) of chiral molecules in…”
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Chlorofluoroiodomethane as a potential candidate for parity violation measurements by Soulard, Pascale, Asselin, Pierre, Cuisset, Arnaud, Aviles Moreno, Juan Ramon, Huet, Thérèse R, Petitprez, Denis, Demaison, Jean, Freedman, Teresa B, Cao, Xiaolin, Nafie, Laurence A, Crassous, Jeanne

“…CHFClI is among the more favorable molecules for parity violation (PV) measurements in molecules. Despite the fact that calculated PV effects are two orders of…”
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Correction to Induced Folding by Chiral Nonplanar Aromatics by Narasimhan, Sri Kamesh, Kerwood, Deborah J, Wu, Lei, Li, Jun, Han, Yongbin, Zhu, Shifa, Shah, Akshay, Lombardi, Rosina, Freedman, Teresa B, Luk, Yan-Yeung

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Structure and absolute configuration of ginkgolide B characterized by IR- and VCD spectroscopy by Andersen, Niels H., Christensen, Niels Johan, Lassen, Peter R., Freedman, Teresa B.N., Nafie, Laurence A., Strømgaard, Kristian, Hemmingsen, Lars

“…Experimental and calculated (B3LYP/6‐31G(d)) vibrational circular dichroism (VCD) and IR spectra are compared, illustrating that the structure and absolute…”
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Determination of Absolute Configuration in Molecules with Chiral Axes by Vibrational Circular Dichroism:  A C2-Symmetric Annelated Heptathiophene and a D2-Symmetric Dimer of 1,1‘-Binaphthyl by Freedman, Teresa B, Cao, Xiaolin, Rajca, Andrzej, Wang, Hua, Nafie, Laurence A

“…The absolute configurations of two large molecules that possess chiral axes, but no chiral centers, have been determined by vibrational circular dichroism…”
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Extension of fourier transform vibrational circular dichroism into the near-infrared region: continuous spectral coverage from 800 to 10 000 cm(-1) by Cao, Xiaolin, Shah, Rekha D, Dukor, Rina K, Guo, Changning, Freedman, Teresa B, Nafie, Laurence A

“…We report the first vibrational circular dichroism (VCD) spectra with continuous coverage from 800 cm(-1) in the mid-infrared (MIR) region to 10 000 cm(-1) in…”
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