Synthesis of 2-Nickela(II)oxetanes from Nickel(0) and Epoxides: Structure, Reactivity, and a New Mechanism of Formation.
Desnoyer, Addison N.; Bowes, Eric G.; Patrick, Brian O.; Love, Jennifer A.; Journal of the American Chemical Society 137 (2015) 12748–12751; doi:10.1021/jacs.5b06735

data_4129478
_publ_section_title
;
 Synthesis of 2-Nickela(II)oxetanes from Nickel(0) and Epoxides:
 Structure, Reactivity, and a New Mechanism of Formation.
;
_journal_issue                   40
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12748
_journal_page_last               12751
_journal_paper_doi               10.1021/jacs.5b06735
_journal_volume                  137
_journal_year                    2015
_chemical_formula_moiety         'C25 H46 Ni O3 P2, C3 D3'
_chemical_formula_sum            'C28 H46 D3 Ni O3 P2'
_chemical_formula_weight         557.34
_space_group_crystal_system      orthorhombic
_space_group_IT_number           60
_space_group_name_Hall           '-P 2n 2ab'
_space_group_name_H-M_alt        'P b c n'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2015-05-11
_audit_creation_method
;
Olex2 1.2
(compiled 2015.01.26 svn.r3150 for OlexSys, GUI svn.r4998)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   15.5113(17)
_cell_length_b                   21.773(2)
_cell_length_c                   17.3548(19)
_cell_measurement_reflns_used    5934
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      22.43
_cell_measurement_theta_min      2.35
_cell_volume                     5861.2(11)
_computing_cell_refinement       'SAINT v8.34A (Bruker, 2013)'
_computing_data_reduction        'SAINT v8.34A (Bruker, 2013)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'XT (Sheldrick, 2015)'
_diffrn_ambient_temperature      90(2)
_diffrn_detector                 'Bruker APEX2 area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'Bruker-Nonius APEXII CCD area detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device
'Bruker-Nonius APEXII CCD area detector and D8 diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'TRIUMPH curved-crystal'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1026
_diffrn_reflns_av_unetI/netI     0.0688
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            28084
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        22.532
_diffrn_reflns_theta_max         22.532
_diffrn_reflns_theta_min         1.612
_diffrn_source                   'sealed X-ray tube'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.797
_exptl_absorpt_correction_T_max  0.984
_exptl_absorpt_correction_T_min  0.778
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2014/5 (Bruker,2014/5) was used for absorption correction.
wR2(int) was 0.0721 before and 0.0627 after correction.
The Ratio of minimum to maximum transmission is 0.7904.
The \l/2 correction factor is 0.00150.
;
_exptl_crystal_colour            orange
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.263
_exptl_crystal_description       plate
_exptl_crystal_F_000             2392
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.136
_refine_diff_density_min         -0.495
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.115
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     320
_refine_ls_number_reflns         3853
_refine_ls_number_restraints     307
_refine_ls_restrained_S_all      1.090
_refine_ls_R_factor_all          0.1292
_refine_ls_R_factor_gt           0.0827
_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^)+(0.0713P)^2^+35.1612P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1937
_refine_ls_wR_factor_ref         0.2166
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2503
_reflns_number_total             3853
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja5b06735_si_002.cif
_cod_data_source_block           17
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_diffrn_radiation_probe' value 'X-ray' was changed to
'x-ray' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/ACS/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        5861.1(11)
_cod_database_code               4129478
_shelx_estimated_absorpt_t_max   0.984
_shelx_estimated_absorpt_t_min   0.857
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Restrained distances
 C26-C27
 1.39 with sigma of 0.005
 C26-C27 \\sim C27-C28 \\sim C28-C29 \\sim C29-C28_$1 \\sim C28_$1-C27_$1 \\sim
C27_$1-C26
 with sigma of 0.01
3. Rigid body (RIGU) restrains
 All non-hydrogen atoms
 with sigma for 1-2 distances of 0.004 and sigma for 1-3 distances of 0.004
4.a Secondary CH2 refined with riding coordinates:
 C4(H4A,H4B), C5(H5A,H5B), C16(H16A,H16B), C17(H17A,H17B)
4.b Aromatic/amide H refined with riding coordinates:
 C1(H1), C6(H6), C26(D26), C27(D27), C28(D28), C29(D29)
4.c Idealised Me refined as rotating group:
 C9(H9A,H9B,H9C), C10(H10A,H10B,H10C), C11(H11A,H11B,H11C), C13(H13A,H13B,
 H13C), C14(H14A,H14B,H14C), C15(H15A,H15B,H15C), C19(H19A,H19B,H19C), C20(H20A,
 H20B,H20C), C21(H21A,H21B,H21C), C23(H23A,H23B,H23C), C24(H24A,H24B,H24C),
 C25(H25A,H25B,H25C)
;
_shelx_res_checksum              32708
_shelx_hkl_checksum              73187
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'