From: Philip B. <pb...@sa...> - 2010-05-21 02:44:06
|
Bob: I and a colleague, are playing with the comparison applet and the page with two JME applets on it. Consider 2-fluorobutane. If we put the R isomer in the right-hand screen (the correct answer), and correctly draw the R in the left, we get a "yes". If we draw the S in the left we get the "different compound" message. If, however, we draw the structure in the left-hand window with no stereochemistry defined, we also get the "yes" answer. Of course that is partially correct, but does not serve the purpose for teaching students how to draw the structure, or comparing structures. Same issue with 2-butanol. So.... Phil J. Philip Bays Professor of Chemistry Department of Chemistry and Physics Saint Mary's College Notre Dame, IN 46556 (574) 284-4663 pb...@sa... |
From: Robert H. <ha...@st...> - 2010-05-21 03:11:01
|
I seem to have broken that. Don't worry --- it did work and will work the way you expect. My VPN is down -- I know what is wrong with the Mac/applet business, but I can't fix it tonight. On Thu, May 20, 2010 at 9:43 PM, Philip Bays <pb...@sa...> wrote: > Bob: > I and a colleague, are playing with the comparison applet and the page with > two JME applets on it. Consider 2-fluorobutane. If we put the R isomer in > the right-hand screen (the correct answer), and correctly draw the R in the > left, we get a "yes". If we draw the S in the left we get the "different > compound" message. If, however, we draw the structure in the left-hand > window with no stereochemistry defined, we also get the "yes" answer. Of > course that is partially correct, but does not serve the purpose for > teaching students how to draw the structure, or comparing structures. Same > issue with 2-butanol. So.... > > Phil > > J. Philip Bays > Professor of Chemistry > Department of Chemistry and Physics > Saint Mary's College > Notre Dame, IN 46556 > (574) 284-4663 > pb...@sa... > > > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > Jmol-users mailing list > Jmo...@li... > https://lists.sourceforge.net/lists/listinfo/jmol-users > -- Robert M. Hanson Professor of Chemistry St. Olaf College 1520 St. Olaf Ave. Northfield, MN 55057 http://www.stolaf.edu/people/hansonr phone: 507-786-3107 If nature does not answer first what we want, it is better to take what answer we get. -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900 |
From: Robert H. <ha...@st...> - 2010-05-21 03:25:33
|
Thanks, Phil. That's fixed. I just messed up with the logic. My VPN is back -- files are uploading now. This will be available in several minutes time. On Thu, May 20, 2010 at 10:10 PM, Robert Hanson <ha...@st...> wrote: > I seem to have broken that. Don't worry --- it did work and will work the > way you expect. My VPN is down -- I know what is wrong with the Mac/applet > business, but I can't fix it tonight. > > > On Thu, May 20, 2010 at 9:43 PM, Philip Bays <pb...@sa...> wrote: > >> Bob: >> I and a colleague, are playing with the comparison applet and the page >> with two JME applets on it. Consider 2-fluorobutane. If we put the R >> isomer in the right-hand screen (the correct answer), and correctly draw the >> R in the left, we get a "yes". If we draw the S in the left we get the >> "different compound" message. If, however, we draw the structure in the >> left-hand window with no stereochemistry defined, we also get the "yes" >> answer. Of course that is partially correct, but does not serve the purpose >> for teaching students how to draw the structure, or comparing structures. >> Same issue with 2-butanol. So.... >> >> Phil >> >> J. Philip Bays >> Professor of Chemistry >> Department of Chemistry and Physics >> Saint Mary's College >> Notre Dame, IN 46556 >> (574) 284-4663 >> pb...@sa... >> >> >> >> >> >> ------------------------------------------------------------------------------ >> >> _______________________________________________ >> Jmol-users mailing list >> Jmo...@li... >> https://lists.sourceforge.net/lists/listinfo/jmol-users >> > > > > -- > Robert M. Hanson > Professor of Chemistry > St. Olaf College > 1520 St. Olaf Ave. > Northfield, MN 55057 > http://www.stolaf.edu/people/hansonr > phone: 507-786-3107 > > > If nature does not answer first what we want, > it is better to take what answer we get. > > -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900 > -- Robert M. Hanson Professor of Chemistry St. Olaf College 1520 St. Olaf Ave. Northfield, MN 55057 http://www.stolaf.edu/people/hansonr phone: 507-786-3107 If nature does not answer first what we want, it is better to take what answer we get. -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900 |
From: Robert H. <ha...@st...> - 2010-05-21 03:34:50
|
OK, that's fixed http://chemapps.stolaf.edu/jmol/docs/examples-11/JmolSmilesTest.htm On Thu, May 20, 2010 at 10:25 PM, Robert Hanson <ha...@st...> wrote: > Thanks, Phil. That's fixed. I just messed up with the logic. My VPN is back > -- files are uploading now. This will be available in several minutes time. > > > On Thu, May 20, 2010 at 10:10 PM, Robert Hanson <ha...@st...>wrote: > >> I seem to have broken that. Don't worry --- it did work and will work the >> way you expect. My VPN is down -- I know what is wrong with the Mac/applet >> business, but I can't fix it tonight. >> >> >> On Thu, May 20, 2010 at 9:43 PM, Philip Bays <pb...@sa...>wrote: >> >>> Bob: >>> I and a colleague, are playing with the comparison applet and the page >>> with two JME applets on it. Consider 2-fluorobutane. If we put the R >>> isomer in the right-hand screen (the correct answer), and correctly draw the >>> R in the left, we get a "yes". If we draw the S in the left we get the >>> "different compound" message. If, however, we draw the structure in the >>> left-hand window with no stereochemistry defined, we also get the "yes" >>> answer. Of course that is partially correct, but does not serve the purpose >>> for teaching students how to draw the structure, or comparing structures. >>> Same issue with 2-butanol. So.... >>> >>> Phil >>> >>> J. Philip Bays >>> Professor of Chemistry >>> Department of Chemistry and Physics >>> Saint Mary's College >>> Notre Dame, IN 46556 >>> (574) 284-4663 >>> pb...@sa... >>> >>> >>> >>> >>> >>> ------------------------------------------------------------------------------ >>> >>> _______________________________________________ >>> Jmol-users mailing list >>> Jmo...@li... >>> https://lists.sourceforge.net/lists/listinfo/jmol-users >>> >> >> >> >> -- >> Robert M. Hanson >> Professor of Chemistry >> St. Olaf College >> 1520 St. Olaf Ave. >> Northfield, MN 55057 >> http://www.stolaf.edu/people/hansonr >> phone: 507-786-3107 >> >> >> If nature does not answer first what we want, >> it is better to take what answer we get. >> >> -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900 >> > > > > -- > Robert M. Hanson > Professor of Chemistry > St. Olaf College > 1520 St. Olaf Ave. > Northfield, MN 55057 > http://www.stolaf.edu/people/hansonr > phone: 507-786-3107 > > > If nature does not answer first what we want, > it is better to take what answer we get. > > -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900 > -- Robert M. Hanson Professor of Chemistry St. Olaf College 1520 St. Olaf Ave. Northfield, MN 55057 http://www.stolaf.edu/people/hansonr phone: 507-786-3107 If nature does not answer first what we want, it is better to take what answer we get. -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900 |