Discerning subtle high-pressure phase transitions in glyphosate
Wilson, Cameron J. G.; Wood, Peter A.; Parsons, Simon; CrystEngComm 25 (2023) 988–997; doi:10.1039/D2CE01616H

data_7246115
_publ_section_title
;
 Discerning subtle high-pressure phase transitions in glyphosate
;
_journal_issue                   6
_journal_name_full               CrystEngComm
_journal_page_first              988
_journal_page_last               997
_journal_paper_doi               10.1039/D2CE01616H
_journal_volume                  25
_journal_year                    2023
_chemical_formula_moiety         'C3 H8 N O5 P'
_chemical_formula_sum            'C3 H8 N O5 P'
_chemical_formula_weight         169.07
_chemical_name_common            Glyphosate
_chemical_name_systematic        N-(Phosphonomethyl)glycine
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2022-03-01
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6408)
;
_audit_update_record
;
2022-11-30 deposited with the CCDC.	2023-01-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 110.868(13)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.562(2)
_cell_length_b                   7.6058(9)
_cell_length_c                   9.3306(12)
_cell_measurement_reflns_used    897
_cell_measurement_temperature    293.15
_cell_measurement_theta_max      20.33
_cell_measurement_theta_min      2.80
_cell_volume                     567.76(17)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_reduction        'SAINT V8.40B (?, 2016)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_diffrn_ambient_temperature      293.15
_diffrn_measured_fraction_theta_full 0.464
_diffrn_measured_fraction_theta_max 0.448
_diffrn_measurement_device_type  'Bruker AXS D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           AgK\a
_diffrn_radiation_wavelength     0.56086
_diffrn_reflns_av_R_equivalents  0.0726
_diffrn_reflns_av_unetI/netI     0.0491
_diffrn_reflns_Laue_measured_fraction_full 0.464
_diffrn_reflns_Laue_measured_fraction_max 0.448
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            4804
_diffrn_reflns_point_group_measured_fraction_full 0.464
_diffrn_reflns_point_group_measured_fraction_max 0.448
_diffrn_reflns_theta_full        19.665
_diffrn_reflns_theta_max         20.676
_diffrn_reflns_theta_min         2.805
_diffrn_source_current           0.9
_diffrn_source_power             0.045
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.235
_exptl_absorpt_correction_T_max  0.7445
_exptl_absorpt_correction_T_min  0.6072
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0830 before and 0.0617 after correction.
The Ratio of minimum to maximum transmission is 0.8156.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            'clear colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.978
_exptl_crystal_description       plate
_exptl_crystal_F_000             352
_exptl_crystal_preparation       'Powder sample received from Sigma-Aldrich'
_exptl_crystal_recrystallization_method
'The material was recrystallised from water by slow evaporation'
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.135
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.208
_refine_diff_density_min         -0.250
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     93
_refine_ls_number_reflns         532
_refine_ls_number_restraints     82
_refine_ls_restrained_S_all      0.988
_refine_ls_R_factor_all          0.0616
_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
'w=1/[\s^2^(Fo^2^)+(0.0400P)^2^+0.7210P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0841
_refine_ls_wR_factor_ref         0.0920
_reflns_Friedel_coverage         0.000
_reflns_number_gt                408
_reflns_number_total             532
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2ce01616h2.cif
_cod_data_source_block           C3H8NO5P_Ag_3p783GPa
_cod_depositor_comments
'Adding full bibliography for 7246103--7246118.cif.'
_cod_original_cell_volume        567.79(18)
_cod_database_code               7246115
_shelx_shelxl_version_number     2019/1
_shelx_estimated_absorpt_t_max   0.988
_shelx_estimated_absorpt_t_min   0.966
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H,H) groups, All N(H,H) groups
 At 1.5 times of:
  All O(H) groups
2. Restrained distances
 O1-C1
 1.31 with sigma of 0.01
 O2-C1
 1.204 with sigma of 0.01
 O2-O1
 2.25 with sigma of 0.03
 C2-C1
 1.512 with sigma of 0.01
 C2-O1
 2.305 with sigma of 0.03
 C2-O2
 2.399 with sigma of 0.03
 N3-C2
 1.481 with sigma of 0.01
 N3-C1
 2.481 with sigma of 0.03
 C4-N3
 1.488 with sigma of 0.01
 C4-C2
 2.486 with sigma of 0.03
 P5-C4
 1.815 with sigma of 0.01
 P5-N3
 2.742 with sigma of 0.03
 O3-P5
 1.574 with sigma of 0.01
 O3-C4
 2.676 with sigma of 0.03
 O4-P5
 1.498 with sigma of 0.01
 O4-C4
 2.659 with sigma of 0.03
 O4-O3
 2.544 with sigma of 0.03
 O5-P5
 1.5 with sigma of 0.01
 O5-C4
 2.704 with sigma of 0.03
 O5-O3
 2.456 with sigma of 0.03
 O5-O4
 2.58 with sigma of 0.03
3. Rigid body (RIGU) restrains
 All non-hydrogen atoms
 with sigma for 1-2 distances of 0.005 and sigma for 1-3 distances of 0.005
4.a Secondary CH2 refined with riding coordinates:
 C2(H2A,H2B), N3(H3A,H3B), C4(H4A,H4B)
4.b Idealised tetrahedral OH refined as rotating group:
 O1(H1), O3(H3)
;
_shelx_res_checksum              33644
_olex2_exptl_crystal_mounting_method 'Merrill Bassett diamond anvil cell'
_olex2_submission_original_sample_id ag_cw21013_0m
_olex2_submission_special_instructions 'No special instructions were received'