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231116s1978 txu f u # eng d |
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20240311193111.3 |
| 099 |
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|a JarmekG 1978
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| 100 |
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|a Jarmek, George E.
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| 245 |
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|a Interactions and Catalysts of ATP and Other Organophosphorous.
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| 264 |
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|a [College Station, Texas] :
|b Texas A&M University,
|c 1978.
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| 300 |
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|a 1 online resource (44 pages).
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| 336 |
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|a text
|b txt
|2 rdacontent
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| 337 |
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|a computer
|b c
|2 rdamedia
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| 338 |
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|a online resource
|b cr
|2 rdacarrier
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| 500 |
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|a Undergraduate thesis written for Program year: 1977-1978
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|a University Undergraduate Fellows, sponsored by Chemistry Department.
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| 520 |
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|a Adenosinetriphosphate (ATP), bis-p-nitrophenyl phenylphoshonate (bis-PNPP) and tris-p-nitro-phenylphosphate were studied in bile salt systems. ATP showed essentially no solvolysis in dimethyl sulfoxide (DMSO) or water systems with sodium cholate (NaC). Rate constants for the solvolysis of bis-PNPP in DMSO in the presence of aggregated NaC are enhanced by factors of more than 5 million fold and 1.89x10⁻⁵ fold with respect to those in the pure bulk solvent and in water systems. The observed rate constant for the formation of p-nitrophenoxide ion exibits a sigmoidal dependence with increasing NaC concentrations reaching a plateau at high NaC concentrations. No kinetic deuterium solvent isotope effects were observed and no reaction occurs in the presence of methyl cholate. A mechanism for the bile salt catalysis is proposed and discussed in terms of both physical and chemical interactions for bis-PNPP. Tris-PNP showed the same trends as bis-PNPP but data was not analyzed completely for this paper.
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| 530 |
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|a Digitized from print version held at Pickle Center High Density Storage, HDR barcode A14850693772
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| 535 |
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|a HDR
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| 653 |
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|a Adenosinetriphosphate
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| 653 |
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|a bile salt catalysis
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| 653 |
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|a bis-p-nitrophenyl phenylphoshonate
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| 653 |
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|a dimethyl sulfoxide
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| 653 |
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|a sodium cholate
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| 653 |
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|a solvolysis
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| 655 |
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|a Undergraduate thesis
|2 local
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| 700 |
1 |
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|a Fendler, E. J. ,
|e degree supervisor.
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| 856 |
4 |
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|z Available on OAKTrust.
|u https://oaktrust.library.tamu.edu/handle/1969.1/CAPSTONE-JarmekG_1978
|t 0
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| 887 |
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|a A14850693772
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| 999 |
f |
f |
|s 347c5525-5126-45cf-8fa7-a4cbd9d3b34e
|i b1a5b7ab-b873-4128-b73e-097d2032e116
|t 0
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| 952 |
f |
f |
|a Texas A&M University
|b College Station
|c Electronic Resources
|d Available Online
|t 0
|e JarmekG 1978
|f Capstone
|g Electronic
|h Other scheme
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| 998 |
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|a JarmekG 1978
|t 0
|l Available Online
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