Chlorine-containing polyacetoxybriarane diterpenoids from the octocoral Junceella fragilis
Do, Hai Nhat; Chen, Yu-Ta; Chien, Su-Ying; Chen, You-Ying; Zhang, Mingzi M.; Tsou, Lun Kelvin; Chen, Jih-Jung; Wen, Zhi-Hong; Lo, Yi-Hao; Zheng, Li-Guo; Sung, Ping-Jyun; RSC Advances 14 (2024) 17195–17201; doi:10.1039/D4RA03062A

data_7248730
_publ_section_title
;
 Chlorine-containing polyacetoxybriarane diterpenoids from the octocoral
 Junceella fragilis
;
_journal_issue                   24
_journal_name_full               'RSC Advances'
_journal_page_first              17195
_journal_page_last               17201
_journal_paper_doi               10.1039/D4RA03062A
_journal_volume                  14
_journal_year                    2024
_chemical_absolute_configuration ad
_chemical_formula_sum            'C30 H38 Cl O14.5'
_chemical_formula_weight         666.05
_chemical_name_systematic        'Gemmacolide X'
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2019/1
_audit_update_record
;
2024-05-21 deposited with the CCDC.	2024-05-21 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.2945(2)
_cell_length_b                   12.4454(2)
_cell_length_c                   22.2997(4)
_cell_measurement_reflns_used    9832
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      68.28
_cell_measurement_theta_min      5.33
_cell_volume                     3412.08(10)
_computing_cell_refinement       'SAINT V8.40B (Bruker AXS LLC, 2019)'
_computing_data_collection       'Bruker Instrument Service vV6.2.16'
_computing_data_reduction        'SAINT V8.40B (Bruker AXS LLC, 2019)'
_computing_molecular_graphics    'Bruker APEX4'
_computing_publication_material  'Bruker APEX4'
_computing_structure_refinement  'SHELXL-2019/1 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXT (Sheldrick 2015)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker D8 VENTURE'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0329
_diffrn_reflns_av_unetI/netI     0.0227
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            34394
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         68.349
_diffrn_reflns_theta_min         4.068
_exptl_absorpt_coefficient_mu    1.567
_exptl_absorpt_correction_T_max  0.9798
_exptl_absorpt_correction_T_min  0.7879
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
Krause, L., Herbst-Irmer, R., Sheldrick, G. M., Stalke, D. (2015). 
"Comparison of silver and molybdenum microfocus X-ray sources for 
single-crystal structure determination" 
J. Appl. Cryst. 48, 3-10. 
doi:10.1107/S1600576714022985 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.297
_exptl_crystal_description       block
_exptl_crystal_F_000             1404
_exptl_crystal_size_max          0.363
_exptl_crystal_size_mid          0.235
_exptl_crystal_size_min          0.198
_refine_diff_density_max         0.224
_refine_diff_density_min         -0.201
_refine_diff_density_rms         0.052
_refine_ls_abs_structure_details
; 
 Flack x determined using 2514 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.000(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     425
_refine_ls_number_reflns         6232
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0310
_refine_ls_R_factor_gt           0.0292
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0460P)^2^+0.4359P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0758
_refine_ls_wR_factor_ref         0.0772
_reflns_Friedel_coverage         0.780
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.997
_reflns_number_gt                5969
_reflns_number_total             6232
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4ra03062a2.cif
_cod_data_source_block           ic22450
_cod_original_formula_sum        'C30 H38 Cl O14.50'
_cod_database_code               7248730
_shelx_shelxl_version_number     2019/1
_shelx_estimated_absorpt_t_min   0.600
_shelx_estimated_absorpt_t_max   0.747
_shelx_res_checksum              23035
_shelx_hkl_checksum              12000