On the prebiotic potential of reduced oxidation state phosphorus: the H-phosphinate-pyruvate system.
Bryant, David E.; Marriott, Katie E. R.; Macgregor, Stuart A.; Kilner, Colin; Pasek, Matthew A.; Kee, Terence P.; Chemical communications (Cambridge, England) 46 (2010) 3726–3728; doi:10.1039/c002689a

data_7105606
_publ_section_title
;
 On the prebiotic potential of reduced oxidation state phosphorus: the
 H-phosphinate-pyruvate system.
;
_journal_issue                   21
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              3726
_journal_page_last               3728
_journal_paper_doi               10.1039/c002689a
_journal_volume                  46
_journal_year                    2010
_chemical_formula_moiety         'C3 H8 Na O6 P'
_chemical_formula_sum            'C3 H8 Na O6 P'
_chemical_formula_weight         194.05
_chemical_name_common
'2-hydroxyphosphinoylpropionic acid, sodium salt'
_chemical_name_systematic
;
2-hydroxyphosphinoylpropionic acid, sodium salt
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 93.49(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.0112(12)
_cell_length_b                   9.5047(19)
_cell_length_c                   12.665(3)
_cell_measurement_reflns_used    1653
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     722.3(3)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1996)'
_computing_data_collection       'COLLECT (Nonius, 1999)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1996)'
_computing_molecular_graphics
;
ORTEP3 for Windows (Farrugia, 1997)
XSeed (Barbour, 2001)
;
_computing_publication_material  'WC (Thornton-Pett, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
;
'Nonius KappaCCD area detector diffractometer'
;
_diffrn_measurement_method
;
Detector set at 30mm from sample with different 2theta offsets
1 degree phi exposures for chi=0 degree settings
1 degree omega exposures for chi=90 degree settings
;
_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  0.1109
_diffrn_reflns_av_sigmaI/netI    0.0557
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            10809
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         2.68
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.421
_exptl_absorpt_correction_T_max  0.9711
_exptl_absorpt_correction_T_min  0.8170
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Using multiple and symmetry-related data measurements via the program SORTAV
See R.H. Blessing, Acta Cryst (1995), A51, 33-38
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.785
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'flat plate'
_exptl_crystal_F_000             400
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.411
_refine_diff_density_min         -0.605
_refine_diff_density_rms         0.111
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.105
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     132
_refine_ls_number_reflns         1653
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.105
_refine_ls_R_factor_all          0.0576
_refine_ls_R_factor_gt           0.0397
_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^)+(0.0434P)^2^+0.2261P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0906
_refine_ls_wR_factor_ref         0.0998
_reflns_number_gt                1282
_reflns_number_total             1653
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c002689a.txt
_cod_data_source_block           m:\x-ray\xray\deb246~1\deb246
_cod_original_cell_volume        722.2(2)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7105606