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INDEX OF BRAILLE SYMBOLS
FOR CHEMICAL NOTATION
The items in this index are "alphabetized" in accordance with the list of the 63 braille symbols, arranged in their standard order, and numbered according to their rank in the list.
23 x dots 1346
x small x electron dot x
26 & dots 12346
& pair of electron dots
right or upper regular,
left or lower bold or hollow
31 * dots
* chemical period
* single, regular electron dot
33 % dots 146
% pair of electron dots
right or upper x, left or
lower regular
34 ? dots 1456
? pair of regular electron dots
35 : dots 156
: pair of electron dots:
right or upper bold or
hollow, left or lower x
36 $ dots 1246
$ pair of electron dots:
right or upper regular,
left or lower x
$bc ring structure: circle
(broken outline)
$b6 ring structure: hexagon
(broken outline)
$c+ plus sign within a circle:
used as a modifier
$c- minus sign within a circle:
used as a modifier
$< chemical arrow: up-pointing
regular
$<"% chemical arrow: regular up-pointing
followed by regular down-
pointing
$<"_% chemical arrow: regular up-pointing
followed by bold down-
pointing
$% chemical arrow: regular down-
pointing
$[3+ chemical arrow: horizontal 12
dipole, left-pointing
$+< chemical arrow: vertical or
oblique dipole, up-
pointing
$+% chemical arrow: vertical or
oblique dipole, down-
pointing
36 $ (cont.) Page
$+3o chemical arrow: horizontal
dipole, right-pointing
$@<",% chemical arrow: half-barb up-
pointing followed by
half-barb down-pointing
$_< chemical arrow: bold up-pointing
$_<"% chemical arrow: bold up-pointing
followed by regular down-
pointing
$_% chemical arrow: bold down-
pointing
37 ] dots 12456
} closing indicator for a
chemical bond
] pair of electron dots: right
or upper bold or hollow,
left or lower regular
38 | dots 1256
| triplet of regular electron
dots (three pairs)
39 [ dots 246
[ pair of electron dots: x's x x
[o vertices (any unlabeled
vertex)
51 / dots 34 Page
/ single electron dot: bold or
hollow
/$[3o crossed arrow
53 # dots 3456
# pair of electron dots: bold or
hollow
#n runover locator (n represents an
upper number assigned by
the transcriber)
54 > dots 345
> pair of electron dots: right or
upper x, left or lower bold
or hollow
57 @ dot 4
@| partition line: vertical, dotted
@|@| partition line: double vertical,
dotted
@@| partition line: vertical, jagged
@", small capital letter indicator
@.o crossed O O
@;|, barred capital letter indicator
59 _ dots 456
_ opening indicator for a
horzontal bond
59 _ (cont.) Page
_ vertical single bond 16
_e vertical single bond: jagged 16
_ei vertical double bond: jagged
_ei] horizontal double bond: jagged
(including indicators) 14
_e] horizontal single bond: jagged
(including indicators)
_g vertical bond: bold
_g] horizontal bond: bold
(including indicators)
_m wedge, vertical or oblique bond:
down-pointing, normal
outline
_o] wedge, horizontal bond: right-
pointing, normal outline
(including indicators)
_p wedge, vertical or oblique bond:
down-pointing, filled in
_r] wedge, horizontal bond: right-
pointing, filled in (including
indicators)
_u wedge, vertical or oblique bond:
up-pointing, normal outline
_v wedge, vertical or oblique bond:
up-pointing, filled in
_x vertical bond: barred 16
_xm wedge, vertical or oblique bond:
down-pointing, barred
59 _ (cont.) Page
_xu wedge, vertical or oblique bond:
up-pointing, barred
_=] horizontal triple bond
(including indicators)
_* oblique bond: upper left to
lower right
_** oblique bond: upper left to
lower right, double
_*< oblique arrow bond: lower
right to upper left
_*% oblique arrow bond: upper
left to lower right
_< vertical arrow bond: up-
pointing
_% vertical arrow bond: down-
pointing
_|o] wedge, horizontal bond: 18
right-pointing, barred
(including indicators)
_|] horizontal bond: barred
(including indicators)
_|[] wedge, horizontal bond
left-pointing, barred
(including indicators)
_[] wedge, horizontal bond left-
pointing, normal outline
(including indicators)
_[3] horizontal arrow bond left-
pointing (including
indicators)
59 _ (cont.) Page
_w] wedge, horizontal bond left-
pointing, filled in
(including indicators)
_x* oblique bond upper left to
lower right, barred
_x/ oblique bond lower left to
upper right, barred
_1 vertical bond dotted
_1m wedge, vertical or oblique bond
down-pointing, dotted outline
_1o] wedge, horizontal bond right-
pointing, dotted outline
(including indicators)
_1u wedge, vertical or oblique bond
up-pointing, dotted outline
_1* oblique bond: upper left
to lower right, dotted
_1] horizontal bond: dotted
(including indicators)
_1[] wedge, horizontal bond: left-
pointing, dotted (including
indicators)
_1/ oblique bond: lower left
to upper right, dotted
_2 vertical bond: broken
_2m wedge, vertical or oblique bond
down-pointing, dashed
outline
59 _ (cont.) Page
_2o] wedge, horizontal bond: right-
pointing, dashed outline
(including indicators)
_2u wedge, vertical or oblique bond
up-pointing, dashed outline
_2* oblique bond: upper left to
lower right, broken
_2] horizontal bond: broken
(including indicators)
_2[] wedge, horizontal bond: left-
pointing, dashed outline
(including indicators)
_2/ oblique bond: lower left to
upper right, broken
_3o] horizontal arrow bond: right-
pointing (including
indicators)
_3] horizontal single bond
(including indicators)
_7] horizontal double bond
(including indicators)
_9 vertical single bond: wavy
_9] horizontal single bond: wavy
(including indicators)
_95 vertical double bond: wavy
_95] horizontal double bond: wavy
(including indicators)
_/ oblique bond: lower left to upper right
59 _ (cont.) Page
_/< oblique arrow bond: lower
left to upper right
_/% oblique arrow bond: upper
right to lower left
_// oblique double bond: lower
left to upper right
__ vertical double bond
___ vertical triple bond
60 " dot 5
"5959 horizontal partition line: 19
jagged
61 . dots 46
. triplet electron dot indicator
(Used to construct only
those triplets composed of
other than regular electron
dots.) For example:
.| vertical partition line: broken
Maintained by
 The Shodor
Education Foundation, Inc.
in cooperation with the
 Braille Authority of North American (BANA)
Copyright © 1998 by the Braille Authority of North America.
Copies in print and braille may be purchased from the
American Printing House for the Blind,
Catalog Number 7-09652-00
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