Low-temperature X-ray structural studies of the ester and ether derivatives of cis- and trans-4-tert-butyl cyclohexanol and 2-adamantanol: application of the variable oxygen probe to determine the relative ?-donor ability of C?H and C?C bonds
Spiniello, Marisa; White, Jonathan M.; Organic & Biomolecular Chemistry 1 (2003) 3094–; doi:10.1039/b303453d

data_7151446
_publ_section_title
;
 Low-temperature X-ray structural studies of the ester and ether
 derivatives of cis- and trans-4-tert-butyl cyclohexanol and
 2-adamantanol: application of the variable oxygen probe to determine
 the relative ?-donor ability of C?H and C?C bonds
;
_journal_issue                   17
_journal_name_full               'Organic &amp;  Biomolecular Chemistry'
_journal_page_first              3094
_journal_paper_doi               10.1039/b303453d
_journal_volume                  1
_journal_year                    2003
_chemical_formula_sum            'C16 H23 N O3'
_chemical_formula_weight         277.35
_chemical_melting_point          81.5(15)
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                100.57(2)
_cell_angle_beta                 90.17(2)
_cell_angle_gamma                95.16(2)
_cell_formula_units_Z            2
_cell_length_a                   6.179(2)
_cell_length_b                   11.071(3)
_cell_length_c                   11.130(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    130.0(2)
_cell_measurement_theta_max      15
_cell_measurement_theta_min      12
_cell_volume                     745.3(3)
_computing_data_collection       'CAD-4 Software 5.0 (Enraf-Nonius, 1989)'
_computing_data_reduction        'PROCESS_DATA (Gable et al., 1994)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      130.0(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Enraf-Nonius CAD-4 diffractometer'
_diffrn_measurement_method       \q2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0196
_diffrn_reflns_av_sigmaI/netI    0.0224
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            2888
_diffrn_reflns_theta_full        24.97
_diffrn_reflns_theta_max         24.97
_diffrn_reflns_theta_min         2.39
_diffrn_standards_decay_%        2
_diffrn_standards_interval_time  9600
_exptl_absorpt_coefficient_mu    0.085
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.236
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             300
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.273
_refine_diff_density_min         -0.216
_refine_diff_density_rms         0.045
_refine_ls_extinction_coef       0.011(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         2622
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0531
_refine_ls_R_factor_gt           0.0439
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0785P)^2^+0.2995P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1252
_refine_ls_wR_factor_ref         0.1332
_reflns_number_gt                2196
_reflns_number_total             2622
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b303453d.txt
_cod_data_source_block           compound4i
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '80-83' was changed to '81.5(15)' -
the average value was taken and precision was estimated.

Automatic conversion script
Id: cif_fix_values 1569 2011-02-09 13:29:24Z adriana 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7151446