The formation of overlooked compounds in the reaction of methyl amine with the diethyl ester of o-phenylenebis(oxamic acid) in MeOH.
Abdulmalic, Mohammad A.; Aliabadi, Azar; Petr, Andreas; Kataev, Vladislav; Rüffer, Tobias; Dalton transactions (Cambridge, England : 2003) 42 (2013) 1798–1809; doi:10.1039/c2dt32259e

data_7022285
_publ_section_title
;
 The formation of overlooked compounds in the reaction of methyl amine
 with the diethyl ester of o-phenylenebis(oxamic acid) in MeOH.
;
_journal_issue                   5
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1798
_journal_page_last               1809
_journal_paper_doi               10.1039/c2dt32259e
_journal_volume                  42
_journal_year                    2013
_chemical_formula_moiety         'C10 H4 Cu N2 O6, 2(C16 H36 N)'
_chemical_formula_sum            'C42 H76 Cu N4 O6'
_chemical_formula_weight         796.61
_chemical_name_systematic
;
?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 91.897(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.5716(9)
_cell_length_b                   17.2023(7)
_cell_length_c                   14.1556(5)
_cell_measurement_reflns_used    4076
_cell_measurement_temperature    115
_cell_measurement_theta_max      62.6711
_cell_measurement_theta_min      4.6393
_cell_volume                     4519.9(3)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.64 (release 22-03-2010 CrysAlis171 .NET)
(compiled Mar 22 2010,13:57:49)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.64 (release 22-03-2010 CrysAlis171 .NET)
(compiled Mar 22 2010,13:57:49)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.64 (release 22-03-2010 CrysAlis171 .NET)
(compiled Mar 22 2010,13:57:49)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      115
_diffrn_measured_fraction_theta_full 0.944
_diffrn_measured_fraction_theta_max 0.944
_diffrn_measurement_device_type  'oxford gemini s'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0333
_diffrn_reflns_av_sigmaI/netI    0.0369
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            6968
_diffrn_reflns_theta_full        62.76
_diffrn_reflns_theta_max         62.76
_diffrn_reflns_theta_min         4.64
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 50
_diffrn_standards_interval_time  10
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    1.045
_exptl_absorpt_correction_T_max  0.9594
_exptl_absorpt_correction_T_min  0.7176
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.64 (release 22-03-2010 CrysAlis171 .NET)
(compiled Mar 22 2010,13:57:49)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.171
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1732
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.594
_refine_diff_density_min         -0.310
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.943
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     240
_refine_ls_number_reflns         3440
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.943
_refine_ls_R_factor_all          0.0639
_refine_ls_R_factor_gt           0.0496
_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^)+(0.0952P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1246
_refine_ls_wR_factor_ref         0.1300
_reflns_number_gt                2596
_reflns_number_total             3440
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt32259e.txt
_cod_data_source_block           cuopba
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7022285