Temperature-induced reversible first-order single crystal to single crystal phase transition in Boc-γ(4)(R)Val-Val-OH: interplay of enthalpy and entropy.
Pal, Rumpa; Reddy, M. B. Madhusudana; Dinesh, Bhimareddy; Balaram, Padmanabhan; Guru Row, Tayur N.; The journal of physical chemistry. A 118 (2014) 9568–9574; doi:10.1021/jp506874q

data_1556096
_publ_section_title
;
 Temperature-induced reversible first-order single crystal to single
 crystal phase transition in Boc-\g(4)(R)Val-Val-OH: interplay of enthalpy
 and entropy.
;
_journal_issue                   40
_journal_name_full               'The journal of physical chemistry. A'
_journal_page_first              9568
_journal_page_last               9574
_journal_paper_doi               10.1021/jp506874q
_journal_volume                  118
_journal_year                    2014
_chemical_absolute_configuration syn
_chemical_compound_source        'see text'
_chemical_formula_moiety         'C17 H32 N2 O5'
_chemical_formula_sum            'C17 H32 N2 O5'
_chemical_formula_weight         344.45
_space_group_IT_number           18
_space_group_name_Hall           'P 2bc 2'
_space_group_name_H-M_alt        'P 2 21 21'
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      18
_symmetry_space_group_name_Hall  'P 2bc 2'
_symmetry_space_group_name_H-M   'P 2 21 21'
_atom_sites_solution_hydrogens   mixed
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.1695(5)
_cell_length_b                   17.5711(6)
_cell_length_c                   12.1157(7)
_cell_measurement_reflns_used    4261
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      26.0
_cell_measurement_theta_min      2.6
_cell_volume                     2164.95(18)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.36.28 (release 01-02-2013 CrysAlis171 .NET)
(compiled Feb  1 2013,16:14:44)
;
_computing_publication_material  'PLATON (Spek, 2003)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Eos, Nova'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'Mova (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0353
_diffrn_reflns_av_unetI/netI     0.0309
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            16781
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_reduction_process
;
;
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.996
_diffrn_reflns_theta_min         2.615
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.982
_exptl_absorpt_correction_T_min  0.966
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.057
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             752
_exptl_crystal_size_max          0.456
_exptl_crystal_size_mid          0.303
_exptl_crystal_size_min          0.235
_refine_diff_density_max         0.129
_refine_diff_density_min         -0.126
_refine_diff_density_rms         0.027
_refine_ls_abs_structure_details 'Flack H.D. (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.1(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     225
_refine_ls_number_reflns         4261
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0699
_refine_ls_R_factor_gt           0.0525
_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^)+(0.0523P)^2^+0.3483P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1225
_refine_ls_wR_factor_ref         0.1314
_reflns_number_gt                3296
_reflns_number_total             4261
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jp506874q_si_001.cif
_cod_data_source_block           rotate_u_ortho
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Orthorhombic' was changed
to 'orthorhombic' 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_database_code               1556096