Experimental Insights into the Electronic Nature, Spectral Features, and Role of Entropy in Short CH<sub>3</sub>···CH<sub>3</sub> Hydrophobic Interactions.
Sarkar, Sounak; Thomas, Sajesh P.; Potnuru, Lokeswara Rao; Edwards, Alison J.; Grosjean, Arnaud; Ramanathan, Krishna Venkatachala; Guru Row, T. N.; The journal of physical chemistry letters 10 (2019) 7224–7229; doi:10.1021/acs.jpclett.9b02734

data_8000326
_publ_section_title
;
 Experimental Insights into the Electronic Nature, Spectral Features, and
 Role of Entropy in Short
 CH<sub>3</sub>&#x00B7;&#x00B7;&#x00B7;CH<sub>3</sub> Hydrophobic
 Interactions.
;
_journal_issue                   22
_journal_name_full               'The journal of physical chemistry letters'
_journal_page_first              7224
_journal_page_last               7229
_journal_paper_doi               10.1021/acs.jpclett.9b02734
_journal_volume                  10
_journal_year                    2019
_chemical_formula_moiety         'C8 H10 N4 O 2, C11 H8 O3'
_chemical_formula_sum            'C19 H18 N5 O4'
_chemical_formula_weight         382.37
_chemical_name_common            'caffeine:3-hydroxy-2-naphthoic acid'
_chemical_name_systematic        'caffeine:3-hydroxy-2-naphthoic acid'
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_space_group_name_Hall           '-P 2ybc'
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_atom_sites_solution_hydrogens   difmap
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_diffrn_measurement_device       'four-circle diffractometer'
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_diffrn_reflns_point_group_measured_fraction_full 0.997
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_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'Mova (Mo) X-ray Source'
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_exptl_absorpt_correction_T_max  0.978
_exptl_absorpt_correction_T_min  0.963
_exptl_crystal_colour            yellow
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_exptl_crystal_description       block
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_exptl_crystal_size_min          0.246
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_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         8165
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0582
_refine_ls_R_factor_gt           0.0467
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0520P)^2^+0.4387P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1195
_refine_ls_wR_factor_ref         0.1247
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_reflns_number_gt                6774
_reflns_number_total             8165
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jz9b02734_si_003.cif
_cod_data_source_block           Caff-3HNA-100K
_cod_depositor_comments
'Adding full bibliography for 8000326--8000347.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               8000326
_shelx_shelxl_version_number     2018/3
_shelx_res_checksum              16063
_shelx_hkl_checksum              55084