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_8000332
_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_sum            'C12 H14 N6 O6'
_chemical_formula_weight         338.29
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   difmap
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_cell_angle_alpha                78.745(2)
_cell_angle_beta                 75.831(2)
_cell_angle_gamma                67.053(3)
_cell_formula_units_Z            2
_cell_length_a                   7.45886(19)
_cell_length_b                   7.8664(2)
_cell_length_c                   14.0846(3)
_cell_measurement_reflns_used    17746
_cell_measurement_temperature    200.00(2)
_cell_measurement_theta_max      36.3420
_cell_measurement_theta_min      2.7970
_cell_volume                     733.24(3)
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      200.00(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 8.0419
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'Xcalibur, Eos, Nova'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0360
_diffrn_reflns_av_unetI/netI     0.0374
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_number            7103
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         36.316
_diffrn_reflns_theta_min         2.830
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'Mova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.125
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.532
_exptl_crystal_description       block
_exptl_crystal_F_000             352
_refine_diff_density_max         0.589
_refine_diff_density_min         -0.272
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     308
_refine_ls_number_reflns         7103
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0474
_refine_ls_R_factor_gt           0.0393
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0553P)^2^+0.0714P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1084
_refine_ls_wR_factor_ref         0.1131
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6012
_reflns_number_total             7103
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jz9b02734_si_003.cif
_cod_data_source_block           Caff-PZCA-200K
_cod_depositor_comments
'Adding full bibliography for 8000326--8000347.cif.'
_cod_database_code               8000332
_shelx_shelxl_version_number     2018/3
_shelx_res_checksum              25305
_shelx_hkl_checksum              90922