home *** CD-ROM | disk | FTP | other *** search
- SSERC Formula Processor
- -----------------------
-
- As a chemist I am sure you have tried to build your own empirical, molecular
- and structural formulae using either your word processor or drawing package
- like !Draw. Now you will know the problems associated with subscripts being
- not quite the right size; or in just the correct position; and the dash (-)
- might be OK for horizontal bonds but how do you do angled or vertical
- bonds?; the benzene ring doesn't look symmetrical; double and triple bonds
- are difficult, especially at an angle etc. etc. etc.
-
- We used the same principles as were applied to our apparatus graphics,
- namely drawing to a 1 mm grid, a set scale and overall consistency, to
- create a system whereby the elements (literally), bonds, ionic and molecular
- fragments as well as homologous series, pre-drawn structures and reactions
- are stored in libraries. We aimed to allow the representations of atoms,
- bonds and ions to fit together with ease. On the organic side we drew all
- the bond lengths to scale so that even structural formulae have a more
- realistic look to them.
-
- There are three discs in this package, all of which have needed to have
- their files compressed because of the large number of graphics. We have
- supplied a copy of the Computer Concepts !CfsReader decompression
- application on each disc. This allows you to access all the files just as if
- they were in a normal window. They are split into Organic, Inorganic and
- Vector.
-
- ORGANIC DISC Directories
- ------------------------
- acidchlor - 8 files
- alcohols - 39 files
- alkanals - 28 files
- alkanes - 39 files
- alkanoicA - 27 files
- alkanones - 8 files
- alkenes - 38 files
- alkynes - 34 files
- amides - 6 files
- amines - 11 files
- anhydrides - 2 files
- carbohydrt - 2 files
- carbon_to - 21 files
- esters - 5 files
- ethers - 5 files
- heterocycl - 5 files
- nitrogen_to - 6 files
- oxygen_to - 5 files
- phenols - 5 files
-
- The carbon_to, nitrogen_to and oxygen_to directories provide scaled bonds
- with a range of other atoms in every conceivable orientation. You just
- ungroup the chosen bond type when you load it in then select the orientation
- of the bond you require. If the molecule you require is close to one of the
- pre-drawn structures in a homologous series directory then you can load this
- in first then customise it with the single bond fragments. Molecules are
- generally available in three forms e.g. for ethane - as CH3CH3, C2H6 and as
- the full structural formula showing the bonds (Note that we show properly
- sized subscripts in the real Draw files!).
-
- INORGANIC DISC Directories
- --------------------------
- elements - A-to-M - 53 files, N-Z - 49 files
- gases - 37 files
- inorg_comp - 67 files
- ions - 82 files
- nonionsymb - 97 files
- nuclides - 25 files
- particles - 11 files
- polymers - 19 files
- radicals - 6 files
- reactions - 33 files
- reductpots - 39 files
- structures - 15 files
-
- The polymers and structures directories really belong on the organic disc
- but there just wasn't the room! The former includes the repeating units as
- well as the more full structural formulae. You can use the files in the
- nonionsymb and ions directories to build up the formulae of inorganic
- compounds - we have made a start in the inorg_comp directory to show you the
- possibilities. The nuclides and particles directories contain radioactivity
- symbols of isotopes and alpha, beta and gamma symbols. Reactions contains a
- number of common and no-so-common examples of how to apply the basic ion and
- element fragments. Reductpots contains full electrode potemtial equations
- for positive and negative ions and includes the relevant voltages against a
- hydrogen standard.
-
- VECTOR LIBRARIES
- ----------------
- This disc contains all the information contained in the other two discs. The
- Vector application (a kind of advanced Draw package) is sold by 4Mation of
- Castle Park Road, Barnstaple, Devon EX32 8PA, Tel (0271) 25353. We think
- the SSERC Formula Processor works best with these Libraries as it makes all
- the information easily and quickly accessible. We understand that these
- Libraries can also be read by the pre-cursor to Vector (also designed and
- created by Jonathan Marten) i.e. DrawPlus.
-
-
-