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【答案】应助回帖
543220835(金币+5): 多谢了,这个我知道的,就是把Cif导到Diamond里时,出来的晶体图形不是很好,自己不会编辑 2011-07-08 15:53:24
data_29093-ICSD
#?2008 by Fachinformationszentrum Karlsruhe, and the U.S. Secretary of
#Commerce on behalf of the United States. All rights reserved.
_database_code_ICSD 29093
_audit_creation_date 1980/01/01
_audit_update_record 2007/04/01
_chemical_name_systematic 'Boron(I) Carbide'
_chemical_formula_structural 'B4 C'
_chemical_formula_sum 'C1 B4'
_publ_section_title
;
The crystal structure of boron carbide
;
loop_
_citation_id
_citation_journal_abbrev
_citation_year
_citation_journal_volume
_citation_page_first
_citation_page_last
_citation_journal_id_ASTM
primary 'Journal of the American Chemical Society' 1943 65 2115 2119 JACSAT
2 'Zhurnal Fizicheskoi Khimii' 1943 17 326 335 ZFKHA9
_publ_author_name 'Clark, H.K.;Hoard, J.L.'
_cell_length_a 5.61
_cell_length_b 5.61
_cell_length_c 12.14
_cell_angle_alpha 90.
_cell_angle_beta 90.
_cell_angle_gamma 120.
_cell_volume 330.88
_cell_formula_units_Z 9
_symmetry_space_group_name_H-M 'R -3 m H'
_symmetry_Int_Tables_number 166
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
1 'x-y, -y, -z'
2 '-x, -x+y, -z'
3 'y, x, -z'
4 'x-y, x, -z'
5 'y, -x+y, -z'
6 '-x, -y, -z'
7 '-x+y, y, z'
8 'x, x-y, z'
9 '-y, -x, z'
10 '-x+y, -x, z'
11 '-y, x-y, z'
12 'x, y, z'
13 'x-y+.6666, -y+.3333, -z+.3333'
14 'x-y+.3333, -y+.6666, -z+.6666'
15 '-x+.6666, -x+y+.3333, -z+.3333'
16 '-x+.3333, -x+y+.6666, -z+.6666'
17 'y+.6666, x+.3333, -z+.3333'
18 'y+.3333, x+.6666, -z+.6666'
19 'x-y+.6666, x+.3333, -z+.3333'
20 'x-y+.3333, x+.6666, -z+.6666'
21 'y+.6666, -x+y+.3333, -z+.3333'
22 'y+.3333, -x+y+.6666, -z+.6666'
23 '-x+.6666, -y+.3333, -z+.3333'
24 '-x+.3333, -y+.6666, -z+.6666'
25 '-x+y+.6666, y+.3333, z+.3333'
26 '-x+y+.3333, y+.6666, z+.6666'
27 'x+.6666, x-y+.3333, z+.3333'
28 'x+.3333, x-y+.6666, z+.6666'
29 '-y+.6666, -x+.3333, z+.3333'
30 '-y+.3333, -x+.6666, z+.6666'
31 '-x+y+.6666, -x+.3333, z+.3333'
32 '-x+y+.3333, -x+.6666, z+.6666'
33 '-y+.6666, x-y+.3333, z+.3333'
34 '-y+.3333, x-y+.6666, z+.6666'
35 'x+.6666, y+.3333, z+.3333'
36 'x+.3333, y+.6666, z+.6666'
loop_
_atom_type_symbol
_atom_type_oxidation_number
B1+ 1
C4- -4
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
B1 B1+ 18 h 0.1667 -.1667 0.26 1. 0
B2 B1+ 18 h 0.106 -.106 0.113 1. 0
C1 C4- 6 c 0 0 0.385 1. 0
C2 C4- 3 b 0 0 0.5 1. 0
#End of data_29093-ICSD |
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