A binuclear aluminium complex as a single competent catalyst for efficient synthesis of urea, biuret, isourea, isothiourea, phosphorylguanidine, and quinazolinones
Bano, Kulsum; Sharma, Jyoti; Jain, Archana; Tsurugi, Hayato; Panda, Tarun K.; RSC Advances 13 (2023) 3020–3032; doi:10.1039/D2RA07714K

data_7246176
_publ_section_title
;
 A binuclear aluminium complex as a single competent catalyst for
 efficient synthesis of urea, biuret, isourea, isothiourea,
 phosphorylguanidine, and quinazolinones
;
_journal_issue                   5
_journal_name_full               'RSC Advances'
_journal_page_first              3020
_journal_page_last               3032
_journal_paper_doi               10.1039/D2RA07714K
_journal_volume                  13
_journal_year                    2023
_chemical_formula_moiety         'C18 H23 N2 O P Se'
_chemical_formula_sum            'C18 H23 N2 O P Se'
_chemical_formula_weight         393.31
_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_method           SHELXL-2018/3
_audit_update_record
;
2022-02-13 deposited with the CCDC.	2022-12-22 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 109.255(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.8367(3)
_cell_length_b                   28.7426(13)
_cell_length_c                   9.8648(6)
_cell_measurement_reflns_used    1548
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      68.7450
_cell_measurement_theta_min      3.0860
_cell_volume                     1830.04(17)
_computing_molecular_graphics    WinGx
_computing_publication_material  'ORTEP 3'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXL-2018/3 (Sheldrick, 2018)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.803
_diffrn_measured_fraction_theta_max 0.784
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at home/near, Eos'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0176
_diffrn_reflns_av_unetI/netI     0.0293
_diffrn_reflns_Laue_measured_fraction_full 0.803
_diffrn_reflns_Laue_measured_fraction_max 0.784
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            3911
_diffrn_reflns_point_group_measured_fraction_full 0.803
_diffrn_reflns_point_group_measured_fraction_max 0.784
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         70.109
_diffrn_reflns_theta_min         3.075
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    3.642
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.59912
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colrless
_exptl_crystal_density_diffrn    1.428
_exptl_crystal_description       block
_exptl_crystal_F_000             808
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.486
_refine_diff_density_min         -0.367
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.198
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     208
_refine_ls_number_reflns         2720
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.198
_refine_ls_R_factor_all          0.0564
_refine_ls_R_factor_gt           0.0474
_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^)+(0.0346P)^2^+2.7709P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1164
_refine_ls_wR_factor_ref         0.1214
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2343
_reflns_number_total             2720
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2ra07714k2.cif
_cod_data_source_block           8952
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7246176
_shelx_shelxl_version_number     2018/3
_shelx_res_checksum              19825