11-Step Total Synthesis of Pallambins C and D.
Martinez, Luisruben P.; Umemiya, Shigenobu; Wengryniuk, Sarah E.; Baran, Phil S.; Journal of the American Chemical Society 138 (2016) 7536–7539; doi:10.1021/jacs.6b04816

data_4130575
_publ_section_title
;
 11-Step Total Synthesis of Pallambins C and D.
;
_journal_issue                   24
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              7536
_journal_page_last               7539
_journal_paper_doi               10.1021/jacs.6b04816
_journal_volume                  138
_journal_year                    2016
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C16 H23 Br O3'
_chemical_formula_sum            'C16 H23 Br O3'
_chemical_formula_weight         343.25
_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   geom
_audit_creation_date             2016-02-25
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2016.02.19 svn.r3266 for OlexSys, GUI svn.r5155)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.9663(5)
_cell_length_b                   12.2238(6)
_cell_length_c                   16.0261(10)
_cell_measurement_reflns_used    2380
_cell_measurement_temperature    100
_cell_measurement_theta_max      26.907
_cell_measurement_theta_min      2.542
_cell_volume                     1560.60(16)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_collection       'APEX2 v2013.6-2 (Bruker, 2013)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XT (Sheldrick, 2008)'
_diffrn_ambient_temperature      100
_diffrn_detector                 'Bruker APEX CCD'
_diffrn_detector_area_resol_mean 8.0
_diffrn_detector_type            'CCD Area Detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device       'Kappa Four-Circle Diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0378
_diffrn_reflns_av_unetI/netI     0.0594
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            8610
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         28.287
_diffrn_reflns_theta_min         2.542
_diffrn_source                   'sealed tube'
_diffrn_source_type              fine-focus
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.639
_exptl_absorpt_correction_T_max  0.2627
_exptl_absorpt_correction_T_min  0.2096
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.0584 before and 0.0406 after correction.
The Ratio of minimum to maximum transmission is 0.7979.
The \l/2 correction factor is 0.00150.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.461
_exptl_crystal_description       block
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.395
_refine_diff_density_min         -0.331
_refine_diff_density_rms         0.076
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.502(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     186
_refine_ls_number_reflns         3855
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0456
_refine_ls_R_factor_gt           0.0342
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0244P)^2^+0.0537P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0611
_refine_ls_wR_factor_ref         0.0644
_reflns_Friedel_coverage         0.750
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                3360
_reflns_number_total             3855
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja6b04816_si_002.cif
_cod_data_source_block           baran570_a
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_diffrn_radiation_probe' value 'X-ray' was changed to
'x-ray' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_database_code               4130575
_shelx_estimated_absorpt_t_max   0.547
_shelx_estimated_absorpt_t_min   0.476
_olex2_refinement_description
;
1. Twinned data refinement
 Scales: 0.498(11) 0.502(11)
2. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
3.a Ternary CH refined with riding coordinates:
 C9(H9), C14(H14)
3.b Secondary CH2 refined with riding coordinates:
 C4(H4A,H4B), C5(H5A,H5B), C8(H8A,H8B)
3.c Aromatic/amide H refined with riding coordinates:
 C15(H15)
3.d X=CH2 refined with riding coordinates:
 C16(H16A,H16B)
3.e Idealised Me refined as rotating group:
 C10(H10A,H10B,H10C), C11(H11A,H11B,H11C), C12(H12A,H12B,H12C), C13(H13A,H13B,
 H13C)
;
_shelx_res_checksum              50416
_shelx_hkl_checksum              95246
_shelx_shelxl_version_number     2014/7
_olex2_submission_original_sample_id LRM-IV-275
_olex2_submission_special_instructions 'No special instructions were received'