Understanding Structure Does Not Always Explain Reactivity: A Phosphinoamide Anion Reacts as an Iminophosphide Anion
Zhaofu Fei; Rosario Scopelliti; Paul J. Dyson; Inorganic Chemistry 42 (2003) 2125–2130; doi:10.1021/ic0262841

data_4313410
_publ_contact_author_address
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Facult\'e des sciences de base
Institut de Chimie Mol\'eculaire et Biologique
EPFL-BCH
CH-1015 Lausanne
Switzerland 
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_publ_contact_author_email       paul.dyson@epfl.ch
_publ_contact_author_fax         '+41 21 69 39885'
_publ_contact_author_name        'Paul J. Dyson'
_publ_contact_author_phone       '+41 21 69 39854'
_publ_section_title
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 Understanding Structure Does Not Always Explain Reactivity: A
 Phosphinoamide Anion Reacts as an Iminophosphide Anion
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_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2125
_journal_page_last               2130
_journal_paper_doi               10.1021/ic0262841
_journal_volume                  42
_journal_year                    2003
_chemical_formula_sum            'C48 H54 I2 Li2 N4 O2 P2'
_chemical_formula_weight         1048.57
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 103.50(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.056(6)
_cell_length_b                   13.951(4)
_cell_length_c                   18.284(6)
_cell_measurement_reflns_used    1480
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      16.71525
_cell_measurement_theta_min      1.79505
_cell_volume                     4975(3)
_computing_cell_refinement       'Oxford Diffraction CrysAlis RED'
_computing_data_collection       'marresearch, mar345'
_computing_data_reduction        'Oxford Diffraction CrysAlis RED'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'marresearch mar345 IPDS'
_diffrn_measurement_method
'60 images with deltaphi = 3 deg. and exp. time = 180 sec.'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0856
_diffrn_reflns_av_sigmaI/netI    0.0813
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_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            28584
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         3.40
_exptl_absorpt_coefficient_mu    1.368
_exptl_absorpt_correction_T_max  0.4880
_exptl_absorpt_correction_T_min  0.0570
_exptl_absorpt_correction_type   refdelf
_exptl_absorpt_process_details
; 
(See: Walker, N. & Stuart, D. (1983) Acta Cryst. A39, 158-166) 
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.400
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             2112
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.505
_refine_diff_density_min         -0.739
_refine_diff_density_rms         0.082
_refine_ls_extinction_coef       0.00105(14)
_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   0.890
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     542
_refine_ls_number_reflns         8776
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      0.899
_refine_ls_R_factor_all          0.1297
_refine_ls_R_factor_gt           0.0548
_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^)+(0.0797P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1339
_refine_ls_wR_factor_ref         0.1821
_reflns_number_gt                3407
_reflns_number_total             8776
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0262841si20021219_041453_1.cif
_cod_data_source_block           4
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
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_cod_original_cell_volume        4974(3)
_cod_database_code               4313410