The structure of water around the compressibility minimum
Journal Article
·
· Journal of Chemical Physics
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Stony Brook Univ., NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Here we present diffraction data that yield the oxygen-oxygen pair distribution function, gOO(r) over the range 254.2–365.9 K. The running O-O coordination number, which represents the integral of the pair distribution function as a function of radial distance, is found to exhibit an isosbestic point at 3.30(5) Å. The probability of finding an oxygen atom surrounding another oxygen at this distance is therefore shown to be independent of temperature and corresponds to an O-O coordination number of 4.3(2). Moreover, the experimental data also show a continuous transition associated with the second peak position in gOO(r) concomitant with the compressibility minimum at 319 K.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- SC00112704; AC02-06CH11357; FG02-09ER46650
- OSTI ID:
- 1236552
- Alternate ID(s):
- OSTI ID: 1226579
- Report Number(s):
- BNL-108194-2015-JA; R&D Project: LS001
- Journal Information:
- Journal of Chemical Physics, Vol. 141, Issue 21; ISSN 0021-9606
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 100 works
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