New Set of Multicomponent Crystals as Efficient Heterogeneous Catalysts for the Synthesis of Cyclic Carbonates.
Kundu, Arunangshu; Saikia, Swagata; Majumder, Manoj; Sengupta, Oindrila; Bhattacharya, Biswajit; De, Gobinda Chandra; Ghosh, Sushobhan; ACS omega 4 (2019) 5221–5232; doi:10.1021/acsomega.9b00101

data_4516959
_publ_section_title
;
 New Set of Multicomponent Crystals as Efficient Heterogeneous Catalysts
 for the Synthesis of Cyclic Carbonates.
;
_journal_issue                   3
_journal_name_full               'ACS omega'
_journal_page_first              5221
_journal_page_last               5232
_journal_paper_doi               10.1021/acsomega.9b00101
_journal_volume                  4
_journal_year                    2019
_chemical_formula_sum            'C42 H38 Mn2 N2 O12'
_chemical_formula_weight         872.62
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   difmap
_audit_creation_method           SHELXL-2018/3
_cell_angle_alpha                90
_cell_angle_beta                 117.251(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   21.5201(9)
_cell_length_b                   10.5500(5)
_cell_length_c                   19.5452(8)
_cell_measurement_reflns_used    150
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      29.1
_cell_measurement_theta_min      2.27
_cell_volume                     3945.0(3)
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2014/4 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.995
_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  0.0408
_diffrn_reflns_av_unetI/netI     0.0310
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            31599
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.109
_diffrn_reflns_theta_min         2.204
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.707
_exptl_absorpt_correction_T_max  0.829
_exptl_absorpt_correction_T_min  0.749
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker AXS SADABS program'
_exptl_crystal_colour            pink
_exptl_crystal_density_diffrn    1.469
_exptl_crystal_description       block
_exptl_crystal_F_000             1800
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.652
_refine_diff_density_min         -0.529
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     339
_refine_ls_number_reflns         5271
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0655
_refine_ls_R_factor_gt           0.0416
_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^)+(0.0720P)^2^+0.2982P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1114
_refine_ls_wR_factor_ref         0.1242
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3653
_reflns_number_total             5271
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ao9b00101_si_002.cif
_cod_data_source_block           SG1
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4516959
_shelx_shelxl_version_number     2018/3
_shelx_res_checksum              11179
_shelx_hkl_checksum              4773