##############################################################################
### ###
### Electronic paper (Acta Crystallographica Section E) ###
### ###
##############################################################################
# #
# This CIF contains the data in a paper accepted for publication in Acta #
# Crystallographica Section E. It conforms to the requirements of Notes #
# for Authors for Section E, and has been peer reviewed under the auspices #
# of the IUCr Commission on Journals. #
# #
# Full details of the Crystallographic Information File format #
# are given in the paper "The Crystallographic Information File (CIF): #
# a New Standard Archive File for Crystallography" by S. R. Hall, F. H. #
# Allen and I. D. Brown [Acta Cryst. (1991), A47, 655-685]. #
# #
# The current version of the core CIF dictionary is obtainable from #
# ftp://ftp.iucr.org/pub/cif_core.dic. The current version number is 2.4. #
# #
# Software is freely available for graphical display of the structure(s) in #
# this CIF. For information consult the CIF home page http://www.iucr.org/ #
# cif/home.html #
# #
# This file may be used for bona fide research purposes within the #
# scientific community so long as proper attribution is given to the journal #
# article from which it was obtained. #
# #
##############################################################################
data_I
_audit_creation_method SHELXL-97
_chemical_name_systematic
;
1,3-Bis[2-(2-oxo-1,3-oxazolidin-3-yl)ethyl]-1H-benzimidazol-
2(3H)-one
;
_chemical_name_common ?
_chemical_formula_moiety 'C17 H20 N4 O5'
_chemical_formula_sum 'C17 H20 N4 O5'
_chemical_formula_iupac 'C17 H20 N4 O5'
_chemical_formula_weight 360.37
_chemical_melting_point ?
_symmetry_cell_setting monoclinic
_symmetry_space_group_name_H-M 'P 21/c'
_symmetry_space_group_name_Hall '-P 2ybc'
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y-1/2, z-1/2'
_cell_length_a 10.5331(10)
_cell_length_b 10.9647(10)
_cell_length_c 14.5541(14)
_cell_angle_alpha 90
_cell_angle_beta 103.258(5)
_cell_angle_gamma 90
_cell_volume 1636.1(3)
_cell_formula_units_Z 4
_cell_measurement_reflns_used 9916
_cell_measurement_theta_min 4.0
_cell_measurement_theta_max 68.1
_cell_measurement_temperature 90.0(5)
_exptl_crystal_description 'fragment'
_exptl_crystal_colour 'colourless'
_exptl_crystal_size_max 0.30
_exptl_crystal_size_mid 0.28
_exptl_crystal_size_min 0.18
_exptl_crystal_density_diffrn 1.463
_exptl_crystal_density_meas ?
_exptl_crystal_density_method 'not measured'
_exptl_crystal_F_000 760
_exptl_absorpt_coefficient_mu 0.918
_exptl_absorpt_correction_type multi-scan
_exptl_absorpt_process_details '(SADABS; Bruker, 2005)'
_exptl_absorpt_correction_T_min 0.770
_exptl_absorpt_correction_T_max 0.852
_exptl_special_details
;
;
_diffrn_ambient_temperature 90.0(5)
_diffrn_radiation_type CuK\a
_diffrn_radiation_wavelength 1.54178
_diffrn_radiation_source 'fine-focus sealed tube'
_diffrn_radiation_monochromator graphite
_diffrn_measurement_device_type 'Bruker APEXII CCD'
_diffrn_measurement_method '\f and \w'
_diffrn_detector_area_resol_mean ?
_diffrn_reflns_number 15549
_diffrn_reflns_av_R_equivalents 0.024
_diffrn_reflns_av_sigmaI/netI 0.0188
_diffrn_reflns_theta_min 4.3
_diffrn_reflns_theta_max 68.2
_diffrn_reflns_theta_full 68.22
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measured_fraction_theta_full 0.970
_diffrn_reflns_limit_h_min -12
_diffrn_reflns_limit_h_max 9
_diffrn_reflns_limit_k_min -12
_diffrn_reflns_limit_k_max 13
_diffrn_reflns_limit_l_min -17
_diffrn_reflns_limit_l_max 17
_refine_special_details
;
Refinement of F^2^ against ALL reflections. The weighted R-factor
wR and goodness of fit S are based on F^2^, conventional
R-factors R are based on F, with F set to zero for
negative F^2^. The threshold expression of F^2^ >
\s(F^2^) is used only for calculating R-factors(gt) etc.
and is not relevant to the choice of reflections for refinement.
R-factors based on F^2^ are statistically about twice as large
as those based on F, and R- factors based on ALL data will be
even larger.
;
_reflns_number_total 2914
_reflns_number_gt 2842
_reflns_threshold_expression I>2\s(I)
_refine_ls_structure_factor_coef Fsqd
_refine_ls_matrix_type full
_refine_ls_R_factor_all 0.0305
_refine_ls_R_factor_gt 0.0298
_refine_ls_wR_factor_gt 0.0736
_refine_ls_wR_factor_ref 0.0741
_refine_ls_goodness_of_fit_ref 1.052
_refine_ls_restrained_S_all 1.052
_refine_ls_number_reflns 2914
_refine_ls_number_parameters 235
_refine_ls_number_restraints 0
_refine_ls_hydrogen_treatment constr
_refine_ls_weighting_scheme calc
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0315P)^2^+0.8105P] where P=(Fo^2^+2Fc^2^)/3'
_atom_sites_solution_hydrogens geom
_atom_sites_solution_primary direct
_atom_sites_solution_secondary difmap
_refine_ls_shift/su_max 0.000
_refine_ls_shift/su_mean 0.000
_refine_diff_density_max 0.234
_refine_diff_density_min -0.193
_refine_ls_extinction_method none
_refine_ls_extinction_coef ?
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
'C' 'C' 0.0181 0.0091
'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' 0.0311 0.0180
'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
'O' 'O' 0.0492 0.0322
'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
_computing_data_collection 'APEX2 (Bruker, 2005)'
_computing_cell_refinement 'SAINT (Bruker, 2005)'
_computing_data_reduction 'SAINT (Bruker, 2005)'
_computing_structure_solution 'SHELXS97 (Sheldrick, 2008)'
_computing_structure_refinement 'SHELXL97 (Sheldrick, 2008)'
_computing_molecular_graphics 'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material 'WinGX (Farrugia, 1999)'
loop_
_atom_site_type_symbol
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
O O1 0.51156(8) 0.90454(8) 0.65034(6) 0.01864(19) Uani d . 1 . .
O O2 0.81349(8) 0.63845(8) 0.39970(6) 0.0221(2) Uani d . 1 . .
O O3 0.61653(8) 0.68768(8) 0.42496(6) 0.0209(2) Uani d . 1 . .
O O4 0.22108(8) 0.77982(8) 0.47938(6) 0.01792(19) Uani d . 1 . .
O O5 0.18927(8) 0.77876(8) 0.62760(6) 0.0217(2) Uani d . 1 . .
N N1 0.71846(9) 0.83091(9) 0.64775(7) 0.0145(2) Uani d . 1 . .
N N2 0.58627(9) 0.71116(9) 0.70549(7) 0.0143(2) Uani d . 1 . .
N N3 0.79091(9) 0.81926(9) 0.46197(7) 0.0149(2) Uani d . 1 . .
N N4 0.33456(9) 0.64839(9) 0.58183(7) 0.0158(2) Uani d . 1 . .
C C1 0.59511(11) 0.82469(11) 0.66601(8) 0.0143(2) Uani d . 1 . .
C C2 0.78498(11) 0.72200(10) 0.67384(8) 0.0142(2) Uani d . 1 . .
C C3 0.70112(11) 0.64616(11) 0.71027(7) 0.0137(2) Uani d . 1 . .
C C4 0.73829(11) 0.52998(11) 0.74338(8) 0.0157(2) Uani d . 1 . .
H H4 0.6828 0.4800 0.7679 0.019 Uiso calc R 1 . .
C C5 0.86290(11) 0.49150(11) 0.73819(8) 0.0174(3) Uani d . 1 . .
H H5 0.8907 0.4137 0.7591 0.021 Uiso calc R 1 . .
C C6 0.94645(11) 0.56687(11) 0.70237(8) 0.0176(3) Uani d . 1 . .
H H6 1.0288 0.5384 0.7000 0.021 Uiso calc R 1 . .
C C7 0.90915(11) 0.68422(11) 0.66999(8) 0.0162(2) Uani d . 1 . .
H H7 0.9653 0.7350 0.6468 0.019 Uiso calc R 1 . .
C C8 0.76194(11) 0.93510(10) 0.60123(8) 0.0159(2) Uani d . 1 . .
H H8A 0.8558 0.9432 0.6227 0.019 Uiso calc R 1 . .
H H8B 0.7223 1.0086 0.6190 0.019 Uiso calc R 1 . .
C C9 0.72673(11) 0.92265(11) 0.49385(8) 0.0162(2) Uani d . 1 . .
H H9A 0.6330 0.9132 0.4724 0.019 Uiso calc R 1 . .
H H9B 0.7516 0.9966 0.4659 0.019 Uiso calc R 1 . .
C C10 0.72954(11) 0.71504(11) 0.42958(8) 0.0160(2) Uani d . 1 . .
C C11 0.94356(12) 0.69048(12) 0.42409(9) 0.0210(3) Uani d . 1 . .
H H11A 0.9846 0.6861 0.3709 0.025 Uiso calc R 1 . .
H H11B 0.9977 0.6475 0.4771 0.025 Uiso calc R 1 . .
C C12 0.92429(11) 0.82316(11) 0.45003(8) 0.0170(3) Uani d . 1 . .
H H12A 0.9852 0.8466 0.5080 0.020 Uiso calc R 1 . .
H H12B 0.9329 0.8785 0.3998 0.020 Uiso calc R 1 . .
C C13 0.47432(11) 0.67173(11) 0.74094(8) 0.0156(2) Uani d . 1 . .
H H13A 0.4262 0.7430 0.7533 0.019 Uiso calc R 1 . .
H H13B 0.5050 0.6290 0.8002 0.019 Uiso calc R 1 . .
C C14 0.38313(11) 0.58849(11) 0.67225(8) 0.0169(2) Uani d . 1 . .
H H14A 0.4293 0.5147 0.6628 0.020 Uiso calc R 1 . .
H H14B 0.3102 0.5655 0.6989 0.020 Uiso calc R 1 . .
C C15 0.24555(11) 0.73773(11) 0.57032(8) 0.0159(2) Uani d . 1 . .
C C16 0.31809(12) 0.72690(11) 0.43458(9) 0.0198(3) Uani d . 1 . .
H H16A 0.3889 0.7837 0.4355 0.024 Uiso calc R 1 . .
H H16B 0.2794 0.7048 0.3697 0.024 Uiso calc R 1 . .
C C17 0.36658(12) 0.61423(11) 0.49327(8) 0.0197(3) Uani d . 1 . .
H H17A 0.3204 0.5413 0.4665 0.024 Uiso calc R 1 . .
H H17B 0.4596 0.6023 0.5006 0.024 Uiso calc R 1 . .
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
O1 0.0189(4) 0.0159(4) 0.0217(4) 0.0033(3) 0.0056(3) 0.0003(3)
O2 0.0169(4) 0.0205(5) 0.0288(5) -0.0003(3) 0.0049(3) -0.0081(4)
O3 0.0160(4) 0.0201(5) 0.0261(5) -0.0024(3) 0.0038(3) -0.0008(4)
O4 0.0165(4) 0.0186(4) 0.0190(4) 0.0030(3) 0.0048(3) 0.0007(3)
O5 0.0178(4) 0.0263(5) 0.0222(4) 0.0031(4) 0.0069(3) -0.0052(4)
N1 0.0156(5) 0.0134(5) 0.0151(5) 0.0001(4) 0.0047(4) 0.0010(4)
N2 0.0135(5) 0.0143(5) 0.0155(5) 0.0002(4) 0.0044(4) 0.0001(4)
N3 0.0145(5) 0.0147(5) 0.0159(5) -0.0007(4) 0.0042(4) -0.0003(4)
N4 0.0161(5) 0.0158(5) 0.0155(5) 0.0018(4) 0.0037(4) -0.0017(4)
C1 0.0158(6) 0.0145(6) 0.0123(5) -0.0005(5) 0.0025(4) -0.0022(4)
C2 0.0164(6) 0.0143(6) 0.0108(5) -0.0001(5) 0.0010(4) -0.0011(4)
C3 0.0139(5) 0.0159(6) 0.0111(5) -0.0006(4) 0.0020(4) -0.0023(4)
C4 0.0184(6) 0.0160(6) 0.0125(5) -0.0018(5) 0.0031(4) 0.0001(4)
C5 0.0211(6) 0.0153(6) 0.0148(5) 0.0034(5) 0.0019(4) 0.0014(4)
C6 0.0157(6) 0.0212(6) 0.0158(5) 0.0038(5) 0.0033(4) -0.0002(5)
C7 0.0163(6) 0.0188(6) 0.0141(5) -0.0013(5) 0.0047(4) 0.0001(4)
C8 0.0181(6) 0.0118(6) 0.0183(6) -0.0016(5) 0.0054(4) -0.0003(4)
C9 0.0179(6) 0.0133(6) 0.0175(6) 0.0020(5) 0.0042(4) 0.0017(4)
C10 0.0177(6) 0.0163(6) 0.0136(5) 0.0017(5) 0.0024(4) 0.0017(4)
C11 0.0149(6) 0.0240(7) 0.0241(6) 0.0000(5) 0.0049(5) -0.0046(5)
C12 0.0146(6) 0.0201(6) 0.0169(6) -0.0007(5) 0.0046(4) 0.0016(5)
C13 0.0147(6) 0.0172(6) 0.0159(5) -0.0010(5) 0.0057(4) -0.0003(5)
C14 0.0166(6) 0.0161(6) 0.0179(6) -0.0008(5) 0.0038(4) 0.0012(5)
C15 0.0121(5) 0.0165(6) 0.0183(6) -0.0028(5) 0.0020(4) -0.0030(5)
C16 0.0215(6) 0.0197(6) 0.0206(6) 0.0029(5) 0.0097(5) 0.0006(5)
C17 0.0246(6) 0.0175(6) 0.0197(6) 0.0033(5) 0.0106(5) -0.0001(5)
_geom_special_details
;
All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes)
are estimated using the full covariance matrix. The cell e.s.d.'s are taken
into account individually in the estimation of e.s.d.'s in distances, angles
and torsion angles; correlations between e.s.d.'s in cell parameters are only
used when they are defined by crystal symmetry. An approximate (isotropic)
treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s.
planes.
;
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
O1 C1 . 1.2252(14) ?
O2 C10 . 1.3612(14) ?
O2 C11 . 1.4510(15) ?
O3 C10 . 1.2144(14) ?
O4 C15 . 1.3692(14) ?
O4 C16 . 1.4531(14) ?
O5 C15 . 1.2147(14) ?
N1 C1 . 1.3862(15) ?
N1 C2 . 1.3926(15) ?
N1 C8 . 1.4545(15) ?
N2 C1 . 1.3831(15) ?
N2 C3 . 1.3921(15) ?
N2 C13 . 1.4570(14) ?
N3 C10 . 1.3439(16) ?
N3 C9 . 1.4496(15) ?
N3 C12 . 1.4552(14) ?
N4 C15 . 1.3396(15) ?
N4 C17 . 1.4542(15) ?
N4 C14 . 1.4546(15) ?
C2 C7 . 1.3853(16) ?
C2 C3 . 1.4027(16) ?
C3 C4 . 1.3862(17) ?
C4 C5 . 1.3971(17) ?
C4 H4 . 0.9300 ?
C5 C6 . 1.3927(17) ?
C5 H5 . 0.9300 ?
C6 C7 . 1.3955(17) ?
C6 H6 . 0.9300 ?
C7 H7 . 0.9300 ?
C8 C9 . 1.5273(16) ?
C8 H8A . 0.9700 ?
C8 H8B . 0.9700 ?
C9 H9A . 0.9700 ?
C9 H9B . 0.9700 ?
C11 C12 . 1.5282(17) ?
C11 H11A . 0.9700 ?
C11 H11B . 0.9700 ?
C12 H12A . 0.9700 ?
C12 H12B . 0.9700 ?
C13 C14 . 1.5215(16) ?
C13 H13A . 0.9700 ?
C13 H13B . 0.9700 ?
C14 H14A . 0.9700 ?
C14 H14B . 0.9700 ?
C16 C17 . 1.5220(17) ?
C16 H16A . 0.9700 ?
C16 H16B . 0.9700 ?
C17 H17A . 0.9700 ?
C17 H17B . 0.9700 ?
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle
_geom_angle_publ_flag
C10 O2 C11 . . 108.99(9) ?
C15 O4 C16 . . 107.65(9) ?
C1 N1 C2 . . 109.92(9) ?
C1 N1 C8 . . 122.48(10) ?
C2 N1 C8 . . 127.44(10) ?
C1 N2 C3 . . 109.94(9) ?
C1 N2 C13 . . 123.46(9) ?
C3 N2 C13 . . 126.51(10) ?
C10 N3 C9 . . 123.71(10) ?
C10 N3 C12 . . 112.52(10) ?
C9 N3 C12 . . 123.31(10) ?
C15 N4 C17 . . 112.04(10) ?
C15 N4 C14 . . 122.29(10) ?
C17 N4 C14 . . 125.49(10) ?
O1 C1 N2 . . 127.34(11) ?
O1 C1 N1 . . 126.44(11) ?
N2 C1 N1 . . 106.22(9) ?
C7 C2 N1 . . 131.76(11) ?
C7 C2 C3 . . 121.35(11) ?
N1 C2 C3 . . 106.88(10) ?
C4 C3 N2 . . 131.36(11) ?
C4 C3 C2 . . 121.60(11) ?
N2 C3 C2 . . 107.03(10) ?
C3 C4 C5 . . 116.91(11) ?
C3 C4 H4 . . 121.5 ?
C5 C4 H4 . . 121.5 ?
C6 C5 C4 . . 121.54(11) ?
C6 C5 H5 . . 119.2 ?
C4 C5 H5 . . 119.2 ?
C5 C6 C7 . . 121.36(11) ?
C5 C6 H6 . . 119.3 ?
C7 C6 H6 . . 119.3 ?
C2 C7 C6 . . 117.21(11) ?
C2 C7 H7 . . 121.4 ?
C6 C7 H7 . . 121.4 ?
N1 C8 C9 . . 112.19(9) ?
N1 C8 H8A . . 109.2 ?
C9 C8 H8A . . 109.2 ?
N1 C8 H8B . . 109.2 ?
C9 C8 H8B . . 109.2 ?
H8A C8 H8B . . 107.9 ?
N3 C9 C8 . . 112.07(9) ?
N3 C9 H9A . . 109.2 ?
C8 C9 H9A . . 109.2 ?
N3 C9 H9B . . 109.2 ?
C8 C9 H9B . . 109.2 ?
H9A C9 H9B . . 107.9 ?
O3 C10 N3 . . 128.03(11) ?
O3 C10 O2 . . 122.02(11) ?
N3 C10 O2 . . 109.95(10) ?
O2 C11 C12 . . 105.27(9) ?
O2 C11 H11A . . 110.7 ?
C12 C11 H11A . . 110.7 ?
O2 C11 H11B . . 110.7 ?
C12 C11 H11B . . 110.7 ?
H11A C11 H11B . . 108.8 ?
N3 C12 C11 . . 100.84(9) ?
N3 C12 H12A . . 111.6 ?
C11 C12 H12A . . 111.6 ?
N3 C12 H12B . . 111.6 ?
C11 C12 H12B . . 111.6 ?
H12A C12 H12B . . 109.4 ?
N2 C13 C14 . . 112.67(9) ?
N2 C13 H13A . . 109.1 ?
C14 C13 H13A . . 109.1 ?
N2 C13 H13B . . 109.1 ?
C14 C13 H13B . . 109.1 ?
H13A C13 H13B . . 107.8 ?
N4 C14 C13 . . 111.20(10) ?
N4 C14 H14A . . 109.4 ?
C13 C14 H14A . . 109.4 ?
N4 C14 H14B . . 109.4 ?
C13 C14 H14B . . 109.4 ?
H14A C14 H14B . . 108.0 ?
O5 C15 N4 . . 128.51(11) ?
O5 C15 O4 . . 121.68(11) ?
N4 C15 O4 . . 109.79(10) ?
O4 C16 C17 . . 104.61(9) ?
O4 C16 H16A . . 110.8 ?
C17 C16 H16A . . 110.8 ?
O4 C16 H16B . . 110.8 ?
C17 C16 H16B . . 110.8 ?
H16A C16 H16B . . 108.9 ?
N4 C17 C16 . . 99.92(9) ?
N4 C17 H17A . . 111.8 ?
C16 C17 H17A . . 111.8 ?
N4 C17 H17B . . 111.8 ?
C16 C17 H17B . . 111.8 ?
H17A C17 H17B . . 109.5 ?
data_global
_journal_date_recd_electronic 2010-12-03
_journal_date_accepted 2010-12-12
_journal_name_full 'Acta Crystallographica, Section E'
_journal_year 2011
_journal_volume 67
_journal_issue 2
_journal_page_first o362
_journal_page_last o363
_journal_paper_category QO
_journal_coeditor_code FJ2373
_publ_contact_author
;
Essassi, El Mokhtar
Laboratoire de Chimie Organique H\'et\'erocyclique, P\^ole de comp\'etences,
Pharmacochimie, Av Ibn Battouta, BP. 1014, Facult\'e des Sciences,
Universit\'e Mohammed V-Agdal, Rabat, Morocco
;
_publ_contact_author_email 'emessassi@yahoo.fr'
_publ_contact_author_fax '212 537 77 54 40'
_publ_section_title
;\
1,3-Bis[2-(2-oxo-1,3-oxazolidin-3-yl)ethyl]-1H-benzimidazol-2(3H)\
-one
;
loop_
_publ_author_name
_publ_author_address
'Ouzidan, Younes'
;
Laboratoire de Chimie Organique Appliqu\'ee
Universit\'e Sidi Mohamed Ben Abdallah
Facult\'e des Sciences et Techniques
Route d'Immouzzer
BP 2202 F\`es
Morocco
;
'Kandri Rodi, Youssef'
;
Laboratoire de Chimie Organique Appliqu\'ee
Universit\'e Sidi Mohamed Ben Abdallah
Facult\'e des Sciences et Techniques
Route d'Immouzzer
BP 2202 F\`es
Morocco
;
'Fronczek, Frank R.'
;
Department of Chemistry, Louisiana State University, Baton Rouge,
LA 70803
USA
;
'Venkatraman, Ramaiyer'
;
Department of Chemistry and Biochemistry
Jackson State University
Jackson
MS 39217
USA
;
'El Ammari, Lahcen'
;
Laboratoire de Chimie du Solide Appliqu\'ee,
Facult\'e des Sciences, Universit\'e Mohammed V-Agdal
Avenue Ibn Battouta, BP 1014, Rabat, Morocco
;
'Essassi, El Mokhtar'
;
INANOTECH (Institute of Nanomaterials and Nanotechnology), MASCiR,
Avenue de l'Arm\'ee Royale, Rabat, Morocco
;