A 2-pyridyl (py) attached phosphine imine [P(Npy)(NHpy)(3)] and an imido phosphinate ion [P(Npy)(2)(NHpy)(2)](-) in its Ag(i) complex.
Gupta, Arvind K.; Chipem, Francis A. S.; Boomishankar, Ramamoorthy; Dalton transactions (Cambridge, England : 2003) 41 (2012) 1848–1853; doi:10.1039/c1dt12004b

data_7018027
_publ_section_title
;
 A 2-pyridyl (py) attached phosphine imine [P(Npy)(NHpy)(3)] and an imido
 phosphinate ion [P(Npy)(2)(NHpy)(2)](-) in its Ag(i) complex.
;
_journal_issue                   6
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1848
_journal_page_last               1853
_journal_paper_doi               10.1039/c1dt12004b
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C20 H19 N8 P'
_chemical_formula_weight         402.40
_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                 105.198(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.5960(16)
_cell_length_b                   19.395(3)
_cell_length_c                   11.0279(17)
_cell_measurement_temperature    296(2)
_cell_volume                     1980.7(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.951
_diffrn_measured_fraction_theta_max 0.951
_diffrn_measurement_device_type  'Bruker Smart Apex'
_diffrn_measurement_method       'Omega and phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0810
_diffrn_reflns_av_sigmaI/netI    0.0730
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            24992
_diffrn_reflns_theta_full        28.40
_diffrn_reflns_theta_max         28.40
_diffrn_reflns_theta_min         2.10
_exptl_absorpt_coefficient_mu    0.163
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.349
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             840
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.248
_refine_diff_density_min         -0.306
_refine_diff_density_rms         0.044
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.911
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     262
_refine_ls_number_reflns         4720
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.911
_refine_ls_R_factor_all          0.0749
_refine_ls_R_factor_gt           0.0416
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0509P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1002
_refine_ls_wR_factor_ref         0.1080
_reflns_number_gt                2799
_reflns_number_total             4720
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt12004b.txt
_cod_data_source_block           Compound3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        1980.7(6)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7018027