Rich Polymorphism in Triacetone-Triperoxide
Reany, Ofer; Kapon, Moshe; Botoshansky, Mark; Keinan, Ehud; Crystal Growth & Design 9 (2009) 3661–; doi:10.1021/cg900390y

data_4509583
_publ_section_title
;
 Rich Polymorphism in Triacetone-Triperoxide
;
_journal_issue                   8
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              3661
_journal_paper_doi               10.1021/cg900390y
_journal_volume                  9
_journal_year                    2009
_chemical_formula_sum            'C18 H36 O12'
_chemical_formula_weight         444.47
_chemical_name_common            'Keinan-36 (Reany)'
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 117.15(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.968(2)
_cell_length_b                   14.029(3)
_cell_length_c                   15.606(3)
_cell_measurement_reflns_used    15612
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      25.04
_cell_measurement_theta_min      1.91
_cell_volume                     2331.5(10)
_computing_cell_refinement       'DENZO HKL2000 (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius, 2006)'
_computing_data_reduction        'DENZO HKL2000 (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'TEXSAN  (MSC, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       'phi- and 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  0.1000
_diffrn_reflns_av_sigmaI/netI    0.0729
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            15612
_diffrn_reflns_theta_full        25.04
_diffrn_reflns_theta_max         25.04
_diffrn_reflns_theta_min         1.91
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.106
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.266
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             960
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.705
_refine_diff_density_min         -0.301
_refine_diff_density_rms         0.085
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     319
_refine_ls_number_reflns         4097
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.1785
_refine_ls_R_factor_gt           0.0974
_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^)+(0.1860P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2681
_refine_ls_wR_factor_ref         0.3141
_reflns_number_gt                1963
_reflns_number_total             4097
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg900390ysup2.cif
_cod_data_source_block           Keinan-36
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4509583