Stepwise Reduction of Octaethyl-β,β′-dioxochlorin Isomers: Access to Structurally and Electronically Diverse Hydroporphyrins
Chaudhri, Nivedita; Zeller, Matthias; Brückner, Christian; The Journal of Organic Chemistry  (2020) –; doi:10.1021/acs.joc.0c01989

data_4038917
_publ_section_title
;
 Stepwise Reduction of Octaethyl-\b,\b&#x2032;-dioxochlorin Isomers:
 Access to Structurally and Electronically Diverse Hydroporphyrins
;
_journal_name_full               'The Journal of Organic Chemistry'
_journal_paper_doi               10.1021/acs.joc.0c01989
_journal_year                    2020
_chemical_absolute_configuration ad
_chemical_formula_sum            'C36 H48 N4 O2'
_chemical_formula_weight         568.78
_space_group_crystal_system      triclinic
_space_group_IT_number           1
_space_group_name_Hall           'P 1'
_space_group_name_H-M_alt        'P 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_cell_angle_alpha                75.546(2)
_cell_angle_beta                 85.851(2)
_cell_angle_gamma                73.985(2)
_cell_formula_units_Z            2
_cell_length_a                   8.6099(4)
_cell_length_b                   13.0696(5)
_cell_length_c                   15.3288(6)
_cell_measurement_reflns_used    9537
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      80.0459
_cell_measurement_theta_min      2.9755
_cell_volume                     1605.48(12)
_computing_cell_refinement       'SAINT V8.38A (Bruker, 2016)'
_computing_data_collection       'Apex3 v2018.7-2 (Bruker, 2017)'
_computing_data_reduction        'SAINT V8.38A (Bruker, 2016)'
_computing_structure_refinement
;  
SHELXL-2018/3 (Sheldrick, 2015, 2018), 
SHELXLE Rev985 (H\"ubschle et al., 2011)
;
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 7.4074
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.966
_diffrn_measurement_device_type
;
Bruker AXS D8 Quest CMOS diffractometer with PhotonII charge-integrating pixel 
array detector (CPAD)
;
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  'laterally graded multilayer (Goebel) mirror'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0356
_diffrn_reflns_av_unetI/netI     0.0428
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.966
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            32570
_diffrn_reflns_point_group_measured_fraction_full 0.957
_diffrn_reflns_point_group_measured_fraction_max 0.899
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         80.611
_diffrn_reflns_theta_min         2.977
_diffrn_source                   'I-mu-S microsource X-ray tube'
_diffrn_source_current           '1.0 mA'
_diffrn_source_voltage           '50 kV'
_exptl_absorpt_coefficient_mu    0.569
_exptl_absorpt_correction_T_max  0.7543
_exptl_absorpt_correction_T_min  0.6301
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS 2016/2: Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.,
 J. Appl. Cryst. 48 (2015) 3-10
;
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.177
_exptl_crystal_description       flake
_exptl_crystal_F_000             616
_exptl_crystal_size_max          0.080
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.246
_refine_diff_density_min         -0.171
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details
;
 Flack x determined using 4974 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.10(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     909
_refine_ls_number_reflns         12669
_refine_ls_number_restraints     495
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0422
_refine_ls_R_factor_gt           0.0393
_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^)+(0.0519P)^2^+0.2142P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1045
_refine_ls_wR_factor_ref         0.1066
_reflns_Friedel_coverage         0.863
_reflns_Friedel_fraction_full    0.916
_reflns_Friedel_fraction_max     0.833
_reflns_number_gt                11706
_reflns_number_total             12669
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo0c01989_si_003.cif
_cod_data_source_block           9-O7-(OH)17-rac
_cod_original_cell_volume        1605.49(12)
_cod_database_code               4038917
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.956
_shelx_estimated_absorpt_t_max   0.983
_shelx_res_checksum              70386
_shelx_hkl_checksum              80023