18 research outputs found
Women Counselor Educators: Strategies for Success in Academia
In order to achieve gender equity in the academy, it is necessary to understand how traditional gender roles impact university practices and policies. In this session, the impact of gender norms on women counselor educators’ teaching, research, and service responsibilities will be explored. Results from recent studies on this topic will be provided. Strategies for successfully navigating the academic culture will be discussed. Ethical responsibilities related to the recruitment and retention of a diverse faculty will be considered. Advocacy activities designed to promote equity in academia will be recommended
SOLVENT SENSITIVITY OF THE WAVE-NUMBER CHARACTERIZING THE CARBONYL STRETCHING VIBRATION OF N-CYCLOHEXYL-2-PYRROLIDINONE DISSOLVED IN PURE LIQUIDS AND IN MIXTURES FORMED BY HEXANE AND DEUTERIOTRICHLOROMETHANE AT 298.2-K
The dependence of nuBAR(C=O) on solvent for N-cyclohexyl-2-pyrrolidinone (NCP) as solute in 18 pure solvents can be described using a two-parameter equation based on the Taft-Kamlet pi* (dipolarity/polarisability) and alpha proton donor parameters. In alcoholic solvents two bands are recorded, the band at the lower wavenumber following the correlation. When CDCl3 is added to a solution of NCP in hexane, nuBAR(C-O) shifts to lower wavenumbers but over a range of mixture compositions two bands are also observed characteristic of the carbonyl group in NCP. The origin of these bands is discussed in terms of two types of hydrogen bonding together with their individual dependences on mixture composition. Comparisons are drawn with the solvent sensitivities of nuBAR(C-O) for propanone, cyclohexanone and dimethylacetamide
The Solvent Mixture Sensitivity of Carbonyl Stretching Frequencies of 2-Pyrrolidinones and Related Compounds
The carbonyl stretching frequencies of 1-substituted 2-pyrrolidinones and related compounds were measured in binary mixtures of hexane-CDCl3 and acetonitrile-D2O and plotted against the mole fraction of the less polar co-solvent The v(C=O) vs. mole fraction correlations enabled to recognize and assign all species resulting from solvent-solute interactions in binary mixtures. The slopes of the above dependencies for species with angular hydrogen bonds correlate well with the carbonyl group relative basicities and reveal that the solvent sensitivity of species in organic hexane-CDCl3 mixtures remarkably depends on the steric effects of substituents in the vicinity of the C=O group. On the other hand a similar dependence for aqueous acetonitrile-D2O mixtures indicates that n(C=O) sensitivity is proportional to the alkyl group effects as expected in Taft substituent constants.
THEORETICAL INTERPRETATION OF INFRARED-SPECTRA OF N-CYCLOHEXYL-2-PYRROLIDONE IN MIXTURES OF HEXANE AND CDCL3
THEORETICAL INTERPRETATION OF INFRARED-SPECTRA OF N-CYCLOHEXYL-2-PYRROLIDONE IN MIXTURES OF HEXANE AND CDCL3
The infrared spectra of N-cyclohexyl-2-pyrrolidone (NCP) in binary mixtures of hexane and CDCl3 were interpreted theoretically in the region of C=O stretching vibrations using the AMI semiempirical method. The results were compared with those obtained for N,N-dimethylacetamide (DMA), cyclohexanone (CX) and propanone (PR). Good correlations were found between the carbonyl stretching frequencies and the theoretical parameters of free and solvated species in equilibria with hexane-CDCl3 solvent mixtures
CARBONYL STRETCHING FREQUENCY-CHARACTERISTICS FOR THE STRONGLY HYDROPHOBIC SOLUTE, N-CYCLOHEXYL-2-PYRROLIDONE IN BINARY AQUEOUS MIXTURES AT 298.15-K - EVIDENCE FOR A 2-DOMAIN MODEL FOR 2-BUTOXYETHANOL WATER MIXTURES
Infrared spectra are reported in the C=O stretching region for N-cyclohexyl-2-pyrrolidone (NCP) in D2O as a function of the mole fraction of added cosolvents. As the solvent composition is changed by adding methanol, ethanol and 2-methylpropan-2-ol, the spectra reveal the presence of two types of hydrogen bonding to the carbonyl group of NCP. When cyanomethane is added, the spectra also show the formation of non-hydrogen-bonded NCP in MeCN-rich mixtures. When 2-butoxyethanol is added to NCP in D2O, the patterns generated by the plots showing the relative amounts of solvates change characteristically in the D2O-rich mixtures consistent with the presence of alcohol-rich and D2O-rich domains