Anti-neuroinflammatory asarone derivatives from the rhizomes of Acorus tatarinowii
Qin, Da-Peng; Feng, Xiao-Lin; Zhang, Wei-Yang; Gao, Hao; Cheng, Xiao-Rui; Zhou, Wen-Xia; Yu, Yang; Yao, Xin-Sheng; RSC Adv. 7 (2017) 8512–; doi:10.1039/C6RA27786A

data_7227551
_publ_section_title
;
 Anti-neuroinflammatory asarone derivatives from the rhizomes of Acorus
 tatarinowii
;
_journal_issue                   14
_journal_name_full               'RSC Adv.'
_journal_page_first              8512
_journal_paper_doi               10.1039/C6RA27786A
_journal_volume                  7
_journal_year                    2017
_chemical_formula_sum            'C22 H24 O6'
_chemical_formula_weight         384.41
_chemical_name_systematic        'asaroquinone A'
_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
_audit_update_record
;
2016-11-22 deposited with the CCDC.
2017-01-09 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 112.489(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.5710(2)
_cell_length_b                   15.1433(4)
_cell_length_c                   18.9868(6)
_cell_measurement_reflns_used    3611
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      62.6990
_cell_measurement_theta_min      3.8310
_cell_volume                     2011.29(11)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Rigaku Saturn724 CCD'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0247
_diffrn_reflns_av_sigmaI/netI    0.0231
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            8905
_diffrn_reflns_theta_full        62.76
_diffrn_reflns_theta_max         62.76
_diffrn_reflns_theta_min         3.86
_exptl_absorpt_coefficient_mu    0.759
_exptl_absorpt_correction_T_max  0.9211
_exptl_absorpt_correction_T_min  0.8508
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; Bruker, 2000'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.269
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             816
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.146
_refine_diff_density_min         -0.165
_refine_diff_density_rms         0.032
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     259
_refine_ls_number_reflns         3208
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0460
_refine_ls_R_factor_gt           0.0382
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0491P)^2^+0.5089P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0947
_refine_ls_wR_factor_ref         0.1028
_reflns_number_gt                2720
_reflns_number_total             3208
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6ra27786a2.cif
_cod_data_source_block           111
_cod_original_cell_volume        2011.29(10)
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7227551