Crystal structures of natural amino acid perhydrates
Prikhodchenko, Petr V.; Medvedev, Alexander G.; Tripol'skaya, Tatiana A.; Churakov, Andrei V.; Wolanov, Yitzhak; Howard, Judith A. K.; Lev, Ovadia; CrystEngComm 13 (2011) 2399–; doi:10.1039/c0ce00481b

data_7205614
_publ_section_title
;
 Crystal structures of natural amino acid perhydrates
;
_journal_issue                   7
_journal_name_full               CrystEngComm
_journal_page_first              2399
_journal_paper_doi               10.1039/c0ce00481b
_journal_volume                  13
_journal_year                    2011
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C6 H13 N O2, H2 O2'
_chemical_formula_sum            'C6 H15 N O4'
_chemical_formula_weight         165.19
_chemical_name_common
;(2S,3S)-2-Amino-3-methylpentanoic acid hydrogen peroxide
solvate
;
_chemical_name_systematic
;
(2S,3S)-2-Amino-3-methylpentanoic acid
hydrogen peroxide solvate
;
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 98.162(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.906(3)
_cell_length_b                   7.645(2)
_cell_length_c                   11.427(3)
_cell_measurement_reflns_used    2968
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      30.435
_cell_measurement_theta_min      3.379
_cell_volume                     856.6(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART APEX II'
_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  0.0334
_diffrn_reflns_av_sigmaI/netI    0.0265
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            4736
_diffrn_reflns_theta_full        28.99
_diffrn_reflns_theta_max         28.99
_diffrn_reflns_theta_min         3.38
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.106
_exptl_absorpt_correction_T_max  0.9790
_exptl_absorpt_correction_T_min  0.9607
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2004)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.281
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             360
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.256
_refine_diff_density_min         -0.137
_refine_diff_density_rms         0.039
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.091
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     122
_refine_ls_number_reflns         1224
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.091
_refine_ls_R_factor_all          0.0276
_refine_ls_R_factor_gt           0.0270
_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^)+(0.0457P)^2^+0.0998P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0725
_refine_ls_wR_factor_ref         0.0728
_reflns_number_gt                1199
_reflns_number_total             1224
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c0ce00481b.txt
_cod_data_source_block           Ile98
_cod_original_cell_volume        856.5(4)
_cod_original_sg_symbol_H-M      'C 2'
_cod_database_code               7205614