#------------------------------------------------------------------------------
#$Date: 2016-03-26 15:50:19 +0200 (Sat, 26 Mar 2016) $
#$Revision: 180318 $
#$URL: svn://www.crystallography.net/cod/cif/7/15/32/7153208.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_7153208
loop_
_publ_author_name
'Vijayadas, Kuruppanthara N.'
'Nair, Roshna V.'
'Gawade, Rupesh L.'
'Kotmale, Amol S.'
'Prabhakaran, Panchami'
'Gonnade, Rajesh G.'
'Puranik, Vedavadi G.'
'Rajamohanan, Pattuparambil R.'
'Sanjayan, Gangadhar J.'
_publ_section_title
;
 Ester vs. amide on folding: a case study with a 2-residue synthetic
 peptide.
;
_journal_issue                   48
_journal_name_full               'Organic & biomolecular chemistry'
_journal_page_first              8348
_journal_page_last               8356
_journal_paper_doi               10.1039/c3ob41967c
_journal_volume                  11
_journal_year                    2013
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C18 H24 N2 O5'
_chemical_formula_sum            'C18 H24 N2 O5'
_chemical_formula_weight         348.39
_chemical_name_systematic
;
?
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.547(5)
_cell_length_b                   9.694(5)
_cell_length_c                   22.943(12)
_cell_measurement_reflns_used    6175
_cell_measurement_temperature    297(2)
_cell_measurement_theta_max      27.210
_cell_measurement_theta_min      2.282
_cell_volume                     1900.9(18)
_computing_cell_refinement       'SAINT (Bruker, 2003)'
_computing_data_collection       'SMART (Bruker, 2003)'
_computing_data_reduction        'SAINT (Bruker, 2003)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'SHELXTL (Bruker, 2003)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      297(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker Smart Apex'
_diffrn_measurement_method       'Phi and Omega Scan'
_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  0.0905
_diffrn_reflns_av_sigmaI/netI    0.0393
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            18354
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.28
_exptl_absorpt_coefficient_mu    0.089
_exptl_absorpt_correction_T_max  0.9591
_exptl_absorpt_correction_T_min  0.8873
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker's SADABS'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.217
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             744
_exptl_crystal_size_max          1.37
_exptl_crystal_size_mid          0.54
_exptl_crystal_size_min          0.47
_refine_diff_density_max         0.160
_refine_diff_density_min         -0.233
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.5(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     230
_refine_ls_number_reflns         3348
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0490
_refine_ls_R_factor_gt           0.0479
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[σ²(Fo²)+(0.0887P)²+0.1311P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1241
_refine_ls_wR_factor_ref         0.1257
_reflns_number_gt                3213
_reflns_number_total             3348
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ob41967c.txt
_cod_data_source_block           6
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7153208
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x+1/2, -y, z+1/2'
'x+1/2, -y+1/2, -z'
'-x, y+1/2, -z+1/2'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_occupancy
_atom_site_symmetry_multiplicity
_atom_site_calc_flag
_atom_site_refinement_flags
O1 O 0.2730(2) 1.05720(19) 0.55220(10) 0.0871(6) Uani 1 1 d .
O2 O -0.09827(17) 0.81376(12) 0.68062(6) 0.0509(3) Uani 1 1 d .
O3 O -0.41725(17) 0.74361(16) 0.75465(8) 0.0673(4) Uani 1 1 d .
O4 O -0.22595(19) 0.59544(12) 0.77747(7) 0.0588(4) Uani 1 1 d .
O5 O 0.29010(17) 0.83240(14) 0.57711(7) 0.0591(4) Uani 1 1 d .
N1 N 0.07981(19) 0.94782(15) 0.60263(6) 0.0477(3) Uani 1 1 d .
H1 H 0.0574 0.8700 0.6186 0.057 Uiso 1 1 calc R
N2 N -0.17261(17) 0.95039(15) 0.75386(6) 0.0418(3) Uani 1 1 d .
C1 C 0.2201(2) 0.9560(2) 0.57462(8) 0.0509(4) Uani 1 1 d .
C2 C -0.0320(2) 1.05293(18) 0.60824(7) 0.0453(4) Uani 1 1 d .
C3 C -0.13526(19) 1.05009(17) 0.65622(7) 0.0412(4) Uani 1 1 d .
C4 C -0.2513(2) 1.1515(2) 0.66053(9) 0.0521(4) Uani 1 1 d .
H4 H -0.3202 1.1503 0.6919 0.063 Uiso 1 1 calc R
C5 C -0.2647(3) 1.2535(2) 0.61863(10) 0.0659(5) Uani 1 1 d .
H5 H -0.3427 1.3200 0.6217 0.079 Uiso 1 1 calc R
C6 C -0.1620(3) 1.2561(2) 0.57221(10) 0.0706(6) Uani 1 1 d .
H6 H -0.1701 1.3253 0.5443 0.085 Uiso 1 1 calc R
C7 C -0.0478(3) 1.1570(2) 0.56698(9) 0.0617(5) Uani 1 1 d .
H7 H 0.0200 1.1596 0.5353 0.074 Uiso 1 1 calc R
C8 C -0.13202(18) 0.93103(17) 0.69754(7) 0.0398(4) Uani 1 1 d .
C9 C -0.1719(2) 0.82957(18) 0.79208(8) 0.0443(4) Uani 1 1 d .
H9 H -0.0664 0.7900 0.7936 0.053 Uiso 1 1 calc R
C10 C -0.2147(3) 0.8910(2) 0.85163(8) 0.0567(5) Uani 1 1 d .
H10A H -0.3271 0.8992 0.8563 0.068 Uiso 1 1 calc R
H10B H -0.1725 0.8362 0.8833 0.068 Uiso 1 1 calc R
C11 C -0.1371(3) 1.0316(2) 0.84852(9) 0.0601(5) Uani 1 1 d .
H11A H -0.1791 1.0936 0.8778 0.072 Uiso 1 1 calc R
H11B H -0.0247 1.0244 0.8537 0.072 Uiso 1 1 calc R
C12 C -0.1777(2) 1.07995(19) 0.78763(8) 0.0520(5) Uani 1 1 d .
H12A H -0.2810 1.1213 0.7864 0.062 Uiso 1 1 calc R
H12B H -0.1015 1.1459 0.7733 0.062 Uiso 1 1 calc R
C13 C -0.2877(2) 0.72070(17) 0.77184(8) 0.0446(4) Uani 1 1 d .
C14 C -0.3256(4) 0.4816(2) 0.76038(14) 0.0842(8) Uani 1 1 d .
H14A H -0.3528 0.4907 0.7200 0.126 Uiso 1 1 calc R
H14B H -0.4190 0.4823 0.7836 0.126 Uiso 1 1 calc R
H14C H -0.2710 0.3962 0.7662 0.126 Uiso 1 1 calc R
C15 C 0.4500(2) 0.8098(2) 0.55382(10) 0.0582(5) Uani 1 1 d .
C16 C 0.5633(3) 0.8972(4) 0.58704(17) 0.1109(12) Uani 1 1 d .
H16A H 0.5468 0.8847 0.6281 0.166 Uiso 1 1 calc R
H16B H 0.5476 0.9924 0.5771 0.166 Uiso 1 1 calc R
H16C H 0.6683 0.8706 0.5772 0.166 Uiso 1 1 calc R
C17 C 0.4528(4) 0.8400(4) 0.48940(12) 0.0958(9) Uani 1 1 d .
H17A H 0.5494 0.8077 0.4730 0.144 Uiso 1 1 calc R
H17B H 0.4438 0.9376 0.4833 0.144 Uiso 1 1 calc R
H17C H 0.3668 0.7938 0.4708 0.144 Uiso 1 1 calc R
C18 C 0.4766(4) 0.6599(3) 0.5631(2) 0.1121(12) Uani 1 1 d .
H18A H 0.4859 0.6417 0.6041 0.168 Uiso 1 1 calc R
H18B H 0.5710 0.6323 0.5437 0.168 Uiso 1 1 calc R
H18C H 0.3899 0.6087 0.5476 0.168 Uiso 1 1 calc R
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
C13 O4 C14 115.87(19)
C1 O5 C15 121.89(15)
C1 N1 C2 126.91(15)
C1 N1 H1 116.5
C2 N1 H1 116.5
C8 N2 C9 117.45(14)
C8 N2 C12 128.88(15)
C9 N2 C12 111.51(14)
O1 C1 O5 125.61(18)
O1 C1 N1 125.65(18)
O5 C1 N1 108.73(15)
C7 C2 N1 122.06(17)
C7 C2 C3 118.99(18)
N1 C2 C3 118.91(16)
C4 C3 C2 118.98(17)
C4 C3 C8 120.72(16)
C2 C3 C8 119.90(15)
C5 C4 C3 120.8(2)
C5 C4 H4 119.6
C3 C4 H4 119.6
C6 C5 C4 119.7(2)
C6 C5 H5 120.1
C4 C5 H5 120.1
C7 C6 C5 120.4(2)
C7 C6 H6 119.8
C5 C6 H6 119.8
C6 C7 C2 121.1(2)
C6 C7 H7 119.5
C2 C7 H7 119.5
O2 C8 N2 119.23(15)
O2 C8 C3 121.06(15)
N2 C8 C3 119.66(15)
N2 C9 C13 111.73(14)
N2 C9 C10 102.81(14)
C13 C9 C10 112.75(16)
N2 C9 H9 109.8
C13 C9 H9 109.8
C10 C9 H9 109.8
C11 C10 C9 101.69(15)
C11 C10 H10A 111.4
C9 C10 H10A 111.4
C11 C10 H10B 111.4
C9 C10 H10B 111.4
H10A C10 H10B 109.3
C12 C11 C10 102.77(16)
C12 C11 H11A 111.2
C10 C11 H11A 111.2
C12 C11 H11B 111.2
C10 C11 H11B 111.2
H11A C11 H11B 109.1
N2 C12 C11 102.38(16)
N2 C12 H12A 111.3
C11 C12 H12A 111.3
N2 C12 H12B 111.3
C11 C12 H12B 111.3
H12A C12 H12B 109.2
O3 C13 O4 124.65(17)
O3 C13 C9 125.08(16)
O4 C13 C9 110.25(16)
O4 C14 H14A 109.5
O4 C14 H14B 109.5
H14A C14 H14B 109.5
O4 C14 H14C 109.5
H14A C14 H14C 109.5
H14B C14 H14C 109.5
O5 C15 C18 103.50(19)
O5 C15 C16 109.21(19)
C18 C15 C16 112.4(3)
O5 C15 C17 109.8(2)
C18 C15 C17 109.2(3)
C16 C15 C17 112.3(3)
C15 C16 H16A 109.5
C15 C16 H16B 109.5
H16A C16 H16B 109.5
C15 C16 H16C 109.5
H16A C16 H16C 109.5
H16B C16 H16C 109.5
C15 C17 H17A 109.5
C15 C17 H17B 109.5
H17A C17 H17B 109.5
C15 C17 H17C 109.5
H17A C17 H17C 109.5
H17B C17 H17C 109.5
C15 C18 H18A 109.5
C15 C18 H18B 109.5
H18A C18 H18B 109.5
C15 C18 H18C 109.5
H18A C18 H18C 109.5
H18B C18 H18C 109.5
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
O1 C1 1.197(2)
O2 C8 1.235(2)
O3 C13 1.196(3)
O4 C13 1.330(2)
O4 C14 1.448(3)
O5 C1 1.340(3)
O5 C15 1.484(2)
N1 C1 1.362(3)
N1 C2 1.403(2)
N1 H1 0.8600
N2 C8 1.351(2)
N2 C9 1.463(2)
N2 C12 1.476(2)
C2 C7 1.390(3)
C2 C3 1.411(3)
C3 C4 1.400(3)
C3 C8 1.494(2)
C4 C5 1.384(3)
C4 H4 0.9300
C5 C6 1.380(4)
C5 H5 0.9300
C6 C7 1.375(4)
C6 H6 0.9300
C7 H7 0.9300
C9 C13 1.519(3)
C9 C10 1.535(3)
C9 H9 0.9800
C10 C11 1.518(3)
C10 H10A 0.9700
C10 H10B 0.9700
C11 C12 1.514(3)
C11 H11A 0.9700
C11 H11B 0.9700
C12 H12A 0.9700
C12 H12B 0.9700
C14 H14A 0.9600
C14 H14B 0.9600
C14 H14C 0.9600
C15 C18 1.486(4)
C15 C16 1.496(4)
C15 C17 1.507(4)
C16 H16A 0.9600
C16 H16B 0.9600
C16 H16C 0.9600
C17 H17A 0.9600
C17 H17B 0.9600
C17 H17C 0.9600
C18 H18A 0.9600
C18 H18B 0.9600
C18 H18C 0.9600
loop_
_geom_torsion_atom_site_label_1
_geom_torsion_atom_site_label_2
_geom_torsion_atom_site_label_3
_geom_torsion_atom_site_label_4
_geom_torsion
C15 O5 C1 O1 3.1(3)
C15 O5 C1 N1 -175.95(16)
C2 N1 C1 O1 3.3(3)
C2 N1 C1 O5 -177.68(16)
C1 N1 C2 C7 28.3(3)
C1 N1 C2 C3 -153.99(17)
C7 C2 C3 C4 0.5(3)
N1 C2 C3 C4 -177.24(15)
C7 C2 C3 C8 173.32(16)
N1 C2 C3 C8 -4.5(2)
C2 C3 C4 C5 -0.2(3)
C8 C3 C4 C5 -172.96(18)
C3 C4 C5 C6 -0.4(3)
C4 C5 C6 C7 0.8(4)
C5 C6 C7 C2 -0.5(4)
N1 C2 C7 C6 177.5(2)
C3 C2 C7 C6 -0.2(3)
C9 N2 C8 O2 0.8(2)
C12 N2 C8 O2 162.55(18)
C9 N2 C8 C3 178.23(14)
C12 N2 C8 C3 -20.1(3)
C4 C3 C8 O2 140.74(17)
C2 C3 C8 O2 -31.9(2)
C4 C3 C8 N2 -36.6(2)
C2 C3 C8 N2 150.75(16)
C8 N2 C9 C13 -61.59(19)
C12 N2 C9 C13 133.64(16)
C8 N2 C9 C10 177.25(16)
C12 N2 C9 C10 12.47(19)
N2 C9 C10 C11 -34.13(19)
C13 C9 C10 C11 -154.60(16)
C9 C10 C11 C12 43.6(2)
C8 N2 C12 C11 -148.20(19)
C9 N2 C12 C11 14.38(19)
C10 C11 C12 N2 -35.67(19)
C14 O4 C13 O3 0.9(3)
C14 O4 C13 C9 179.16(19)
N2 C9 C13 O3 -42.3(2)
C10 C9 C13 O3 72.9(2)
N2 C9 C13 O4 139.48(15)
C10 C9 C13 O4 -105.32(18)
C1 O5 C15 C18 -177.5(2)
C1 O5 C15 C16 62.6(3)
C1 O5 C15 C17 -61.0(3)
