(<i>R</i>)-Methyl 2-(furan-2-carboxamido)-4-methylpentanoate
Xiao-Jian Liao; Wen-Jie Xu; Shi-Hai Xu; Po-Run Liu; Acta Crystallographica Section E 63 (2007) o3644–o3644; doi:10.1107/S1600536807036410

data_2214561
_publ_section_title
;
 (<i>R</i>)-Methyl 2-(furan-2-carboxamido)-4-methylpentanoate
;
_journal_coeditor_code           BX2093
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3644
_journal_page_last               o3644
_journal_paper_doi               10.1107/S1600536807036410
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C12 H17 N O4'
_chemical_formula_moiety         'C12 H17 N O4'
_chemical_formula_sum            'C12 H17 N O4'
_chemical_formula_weight         239.27
_chemical_name_systematic
;
(<i>R</i>)-Methyl 2-(furan-2-carboxamido)-4-methylpentanoate
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   8.7674(10)
_cell_length_b                   16.1703(18)
_cell_length_c                   18.224(2)
_cell_measurement_reflns_used    13310
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      18
_cell_measurement_theta_min      12
_cell_volume                     2583.6(5)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1997)'
_computing_data_reduction        'SAINT (Bruker, 1997)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD aea-detector'
_diffrn_measurement_method       \w
_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  0.0242
_diffrn_reflns_av_sigmaI/netI    0.0221
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            13310
_diffrn_reflns_theta_full        27.05
_diffrn_reflns_theta_max         27.05
_diffrn_reflns_theta_min         2.52
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  0.982
_exptl_absorpt_correction_T_min  0.957
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.230
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1024
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.672
_refine_diff_density_min         -0.210
_refine_ls_extinction_coef       0.0046(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 1997)'
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     315
_refine_ls_number_reflns         3189
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0612
_refine_ls_R_factor_gt           0.0494
_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^)+(0.0652P)^2^+1.1602P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1242
_refine_ls_wR_factor_ref         0.1336
_reflns_number_gt                2685
_reflns_number_total             3189
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bx2093.cif
_cod_data_source_block           I
_cod_database_code               2214561
_cod_database_fobs_code          2214561