Efficient Ni(II)2Ln(III)2 Electrocyclization Catalysts for the Synthesis of trans-4,5-Diaminocyclopent-2-enones from 2-Furaldehyde and Primary or Secondary Amines.
Griffiths, Kieran; Kumar, Prashant; Mattock, James D.; Abdul-Sada, Alaa; Pitak, Mateusz B.; Coles, Simon J.; Navarro, Oscar; Vargas, Alfredo; Kostakis, George E.; Inorganic chemistry 55 (2016) 6988–6994; doi:10.1021/acs.inorgchem.6b00720

data_4347853
_publ_section_title
;
 Efficient Ni(II)2Ln(III)2 Electrocyclization Catalysts for the Synthesis
 of trans-4,5-Diaminocyclopent-2-enones from 2-Furaldehyde and Primary or
 Secondary Amines.
;
_journal_issue                   14
_journal_name_full               'Inorganic chemistry'
_journal_page_first              6988
_journal_page_last               6994
_journal_paper_doi               10.1021/acs.inorgchem.6b00720
_journal_volume                  55
_journal_year                    2016
_chemical_formula_moiety         'C72 H62 N4 Ni2 O20 Sm2, 4(C2 H3 N)'
_chemical_formula_sum            'C80 H74 N8 Ni2 O20 Sm2'
_chemical_formula_weight         1885.59
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2015-11-30
_audit_creation_method
;
Olex2 1.2
(compiled 2015.09.30 svn.r3233 for OlexSys, GUI svn.r5103)
;
_cell_angle_alpha                111.094(8)
_cell_angle_beta                 98.398(7)
_cell_angle_gamma                107.056(8)
_cell_formula_units_Z            1
_cell_length_a                   10.1257(4)
_cell_length_b                   13.9327(6)
_cell_length_c                   15.1393(10)
_cell_measurement_reflns_used    22692
_cell_measurement_temperature    100
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     1827.7(2)
_computing_cell_refinement       'CrystalClear-SM Expert 3.1 b18 (Rigaku, 2012)'
_computing_data_collection       'CrystalClear-SM Expert 3.1 b18 (Rigaku, 2012)'
_computing_data_reduction        'CrystalClear-SM Expert 3.1 b18 (Rigaku, 2012)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100.(2)
_diffrn_detector                 CCD
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device
;
AFC12 (Right): Kappa 3 circle
;
_diffrn_measurement_device_type
;
Rigaku Saturn724+ (2x2 bin mode)
;
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_measurement_specimen_support MiTeGen
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0387
_diffrn_reflns_av_unetI/netI     0.0417
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            24423
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.482
_diffrn_reflns_theta_min         3.006
_diffrn_source                   'Rotating Anode'
_diffrn_source_current           55.0
_diffrn_source_voltage           45.0
_exptl_absorpt_coefficient_mu    2.173
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.725
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear-SM Expert 3.1 b18 (Rigaku, 2012)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.713
_exptl_crystal_description       column
_exptl_crystal_F_000             950
_exptl_crystal_size_max          0.09
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.864
_refine_diff_density_min         -1.045
_refine_diff_density_rms         0.106
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.067
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     510
_refine_ls_number_reflns         8332
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.067
_refine_ls_R_factor_all          0.0373
_refine_ls_R_factor_gt           0.0316
_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^)+(0.0386P)^2^+1.4877P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0765
_refine_ls_wR_factor_ref         0.0789
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7501
_reflns_number_total             8332
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ic6b00720_si_002.cif
_cod_data_source_block           1Sm-B
_cod_database_code               4347853
_shelxl_version_number           2014-1
_shelx_estimated_absorpt_t_max   0.958
_shelx_estimated_absorpt_t_min   0.828
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H,H) groups
2.a Rotating group:
 O10(H10A,H10B)
2.b Me refined with riding coordinates:
 C38(H38A,H38B,H38C)
2.c Aromatic/amide H refined with riding coordinates:
 C2(H2), C3(H3), C4(H4), C5(H5), C7(H7), C9(H9), C10(H10), C11(H11), C16(H16),
 C17(H17), C18(H18), C19(H19), C21(H21), C23(H23), C24(H24), C25(H25), C31(H31),
  C32(H32), C33(H33), C36(H36)
2.d Idealised Me refined as rotating group:
 C14(H14A,H14B,H14C), C28(H28A,H28B,H28C), C37(H37A,H37B,H37C), C40(H40A,H40B,
 H40C)
;
_shelx_res_checksum              76350
_shelx_hkl_checksum              22447
_olex2_submission_special_instructions 'No special instructions were received'