Tautomerism and metal complexation of 2-acylmethyl-2-oxazolines: a combined synthetic, spectroscopic, crystallographic and theoretical treatment.
Jones, Roderick C.; Herasymchuk, Khrystyna; Mahdi, Tayseer; Petrov, Anna; Resanović, Sanja; Vaughan, Douglas G.; Lough, Alan J.; Quail, J. Wilson; Koivisto, Bryan D.; Wylie, R. Stephen; Gossage, Robert A.; Organic & biomolecular chemistry 11 (2013) 3484–3493; doi:10.1039/c3ob25867j

data_7152924
_publ_section_title
;
 Tautomerism and metal complexation of 2-acylmethyl-2-oxazolines: a
 combined synthetic, spectroscopic, crystallographic and theoretical
 treatment.
;
_journal_issue                   21
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              3484
_journal_page_last               3493
_journal_paper_doi               10.1039/c3ob25867j
_journal_volume                  11
_journal_year                    2013
_chemical_formula_moiety         'C13 H14 N2 O4'
_chemical_formula_sum            'C13 H14 N2 O4'
_chemical_formula_weight         262.26
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_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                83.164(2)
_cell_angle_beta                 73.727(2)
_cell_angle_gamma                69.797(2)
_cell_formula_units_Z            8
_cell_length_a                   12.1245(3)
_cell_length_b                   14.0624(3)
_cell_length_c                   16.2235(4)
_cell_measurement_reflns_used    6094
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      0.998
_cell_volume                     2491.16(11)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1998)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device       'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans and \w scans with \k offsets'
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0640
_diffrn_reflns_av_sigmaI/netI    0.0596
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            35976
_diffrn_reflns_theta_full        27.43
_diffrn_reflns_theta_max         27.43
_diffrn_reflns_theta_min         3.25
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.105
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.399
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1104
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.268
_refine_diff_density_min         -0.287
_refine_diff_density_rms         0.045
_refine_ls_extinction_coef       0.0065(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     709
_refine_ls_number_reflns         11295
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.1043
_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^)+(0.0605P)^2^+0.6843P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1256
_refine_ls_wR_factor_ref         0.1510
_reflns_number_gt                6852
_reflns_number_total             11295
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c3ob25867j.txt
_cod_data_source_block           1178
_cod_database_code               7152924