Unveiling the "Booster Effect" of Fluorinated Alcohol Solvents: Aggregation-Induced Conformational Changes and Cooperatively Enhanced H-Bonding
Albrecht Berkessel; Jens A. Adrio; Daniel Hüttenhain; Jörg M. Neudörfl; Journal of the American Chemical Society 128 (2006) 8421–8426; doi:10.1021/ja0545463

data_4110676
_publ_section_title
;
 Unveiling the "Booster Effect" of Fluorinated Alcohol Solvents:
 Aggregation-Induced Conformational Changes and Cooperatively Enhanced
 H-Bonding
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              8421
_journal_page_last               8426
_journal_paper_doi               10.1021/ja0545463
_journal_volume                  128
_journal_year                    2006
_chemical_formula_moiety         'C8 H7 F3 O'
_chemical_formula_sum            'C8 H7 F3 O'
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_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
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_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   4.8815(4)
_cell_length_b                   9.4492(14)
_cell_length_c                   16.934(2)
_cell_measurement_reflns_used    3294
_cell_measurement_temperature    100(2)
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_cell_measurement_theta_min      2.41
_cell_volume                     781.10(16)
_computing_cell_refinement       'Nonius DENZO'
_computing_data_collection       'Nonius COLLECT'
_computing_data_reduction        'Nonius DENZO'
_computing_molecular_graphics    'SCHAKAL99 (E. Keller 1999)'
_computing_publication_material  'PLATON (A. L. Spek 1980-2004)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       Phi/Omega-Scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0460
_diffrn_reflns_av_sigmaI/netI    0.0653
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -14
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_diffrn_reflns_theta_full        26.95
_diffrn_reflns_theta_max         26.95
_diffrn_reflns_theta_min         2.41
_exptl_absorpt_coefficient_mu    0.145
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colurless
_exptl_crystal_density_diffrn    1.498
_exptl_crystal_description       plate
_exptl_crystal_F_000             360
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.172
_refine_diff_density_min         -0.211
_refine_diff_density_rms         0.044
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   3.7(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     137
_refine_ls_number_reflns         1021
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0721
_refine_ls_R_factor_gt           0.0331
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0141P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0504
_refine_ls_wR_factor_ref         0.0564
_reflns_number_gt                692
_reflns_number_total             1021
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0545463si20050720_082554.cif
_cod_data_source_block           phtfetoh
_cod_original_cell_volume        781.09(16)
_cod_database_code               4110676