Ru(II)-catalysed oxidative (4 + 2) annulation of chromene and coumarin carboxylic acids with alkynes/propargylic alcohols: isolation of Ru(0) complexes.
Shankar, Mallepalli; Kumara Swamy, K. C.; Organic & biomolecular chemistry 21 (2022) 195–208; doi:10.1039/d2ob01890j

data_7159041
_publ_section_title
;
 Ru(II)-catalysed oxidative (4 + 2) annulation of chromene and coumarin
 carboxylic acids with alkynes/propargylic alcohols: isolation of Ru(0)
 complexes.
;
_journal_issue                   1
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              195
_journal_page_last               208
_journal_paper_doi               10.1039/d2ob01890j
_journal_volume                  21
_journal_year                    2022
_chemical_formula_moiety         'C20 H15 Br O4, C Cl'
_chemical_formula_sum            'C21 H15 Br Cl O4'
_chemical_formula_weight         446.69
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2022-05-07
_audit_creation_method
;
Olex2 1.3-ac4
(compiled 2018.12.18 svn.r3554 for Rigaku Oxford Diffraction, GUI svn.r1)
;
_audit_update_record
;
2022-10-15 deposited with the CCDC.	2022-11-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 117.646(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   16.4674(10)
_cell_length_b                   7.5481(5)
_cell_length_c                   16.6864(10)
_cell_measurement_reflns_used    7187
_cell_measurement_temperature    297(2)
_cell_measurement_theta_max      26.40
_cell_measurement_theta_min      2.76
_cell_volume                     1837.3(2)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      297.46
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0382
_diffrn_reflns_av_unetI/netI     0.0308
_diffrn_reflns_Laue_measured_fraction_full 0.986
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            15049
_diffrn_reflns_point_group_measured_fraction_full 0.986
_diffrn_reflns_point_group_measured_fraction_max 0.986
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         25.000
_diffrn_reflns_theta_min         2.756
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.408
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'clear whiteish white'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   whiteish
_exptl_crystal_colour_primary    white
_exptl_crystal_density_diffrn    1.615
_exptl_crystal_description       block
_exptl_crystal_F_000             900
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent'
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.538
_refine_diff_density_min         -1.057
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         3187
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0550
_refine_ls_R_factor_gt           0.0462
_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^)+(0.0703P)^2^+1.6542P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1256
_refine_ls_wR_factor_ref         0.1320
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2695
_reflns_number_total             3187
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2ob01890j3.cif
_cod_data_source_block           Compound5ce
_cod_depositor_comments
'Adding full bibliography for 7159040--7159044.cif.'
_cod_database_code               7159041
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.795
_shelx_estimated_absorpt_t_min   0.645
_olex2_refinement_description
;
1. 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
2.a Secondary CH2 refined with riding coordinates:
 C1(H1A,H1B)
2.b Aromatic/amide H refined with riding coordinates:
 C9(H9), C19(H19), C7(H7), C15(H15), C18(H18), C16(H16), C17(H17)
2.c Idealised Me refined as rotating group:
 C13(H13A,H13B,H13C), C20(H20A,H20B,H20C)
;
_shelx_res_checksum              1991
_olex2_submission_special_instructions 'No special instructions were received'