Efficient synthesis of coumarin-based tetra and pentacyclic rings using phospha-palladacycles
Kapdi, Anant R.; Karbelkar, Amruta; Naik, Minal; Pednekar, Suhas; Fischer, Christian; Schulzke, Carola; Tromp, Moniek; RSC Advances 3 (2013) 20905–; doi:10.1039/c3ra43821j

data_7239235
_publ_section_title
;
 Efficient synthesis of coumarin-based tetra and pentacyclic rings using
 phospha-palladacycles
;
_journal_issue                   43
_journal_name_full               'RSC Advances'
_journal_page_first              20905
_journal_paper_doi               10.1039/c3ra43821j
_journal_volume                  3
_journal_year                    2013
_chemical_formula_sum            'C13 H10 O3'
_chemical_formula_weight         214.21
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                74.24(3)
_cell_angle_beta                 78.39(3)
_cell_angle_gamma                78.91(3)
_cell_formula_units_Z            2
_cell_length_a                   7.3536(15)
_cell_length_b                   7.5164(15)
_cell_length_c                   9.6215(19)
_cell_measurement_reflns_used    5228
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      58.8
_cell_measurement_theta_min      6.7
_cell_volume                     495.97(19)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      170(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.980
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0483
_diffrn_reflns_av_sigmaI/netI    0.0520
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            5228
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         29.16
_diffrn_reflns_theta_min         3.34
_exptl_absorpt_coefficient_mu    0.102
_exptl_absorpt_correction_T_max  0.9478
_exptl_absorpt_correction_T_min  0.8331
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'face indexed'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.434
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             224
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.224
_refine_diff_density_min         -0.259
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.089
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     174
_refine_ls_number_reflns         2614
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.0995
_refine_ls_R_factor_gt           0.0558
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0505P)^2^+0.2228P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1184
_refine_ls_wR_factor_ref         0.1416
_reflns_number_gt                1703
_reflns_number_total             2614
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c3ra43821j.txt
_cod_data_source_block           mnb74
_cod_original_cell_volume        495.97(17)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7239235