Todd:Guidelines: Difference between revisions
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===Reaction Numbering=== | ===Reaction Numbering=== | ||
Reactions need to be given a unique identifier. The number takes the following form: '''Your Initials X-Y-Z''' where X is the reaction type, Y is the attempt number and Z is the page of your lab book where the reaction appears. | Reactions need to be given a unique identifier. The number takes the following form: '''Your Initials X-Y-Z''' where '''X''' is the reaction type, '''Y''' is the attempt number and '''Z''' is the page of your lab book where the reaction appears. | ||
A reaction type means ‘starting material-arrow-product.’ If you are attempting a certain transformation of a particular starting material to a particular product, then any attempt at that reaction has the same reaction number, regardless of reagents. The reaction also has this number regardless of the outcome. It is the intention that counts. Stereochemistry of products is also important – if the intended stereochemical outcome is different, the reaction has a different number. The numbering of reactions is unique to you, you do not use the same numbers as previous people in the group even if you are repeating their work. | A reaction type means ‘starting material-arrow-product.’ If you are attempting a certain transformation of a particular starting material to a particular product, then any attempt at that reaction has the same reaction number, regardless of reagents. The reaction also has this number regardless of the outcome. It is the intention that counts. Stereochemistry of products is also important – if the intended stereochemical outcome is different, the reaction has a different number. The numbering of reactions is unique to you, you do not use the same numbers as previous people in the group even if you are repeating their work. | ||
Attempt number just increases by 1 each time you do the reaction. Screening several different reaction conditions on small scale on the same page of your lab book can be named with ‘A’ ‘B’ ‘C’ after the full name if so desired, rather than exhaustively giving each reaction a different Y. | Attempt number just increases by 1 each time you do the reaction. Screening several different reaction conditions on small scale on the same page of your lab book can be named with ‘A’ ‘B’ ‘C’ after the full name if so desired, rather than exhaustively giving each reaction a different '''Y''', so e.g. MHT 1-2-3A, MHT 1-2-3B etc. This also applies to multiple fractions/products collected from the same reaction. | ||
Z is the page number of your lab book where the reaction diagram appears. This number stays the same if the reaction write-up extends over more than one page. In fact it is a good idea to begin each new reaction on the right hand-facing page of the book, allowing overspill at a later date. | '''Z''' is the page number of your lab book where the reaction diagram appears. This number stays the same if the reaction write-up extends over more than one page. In fact it is a good idea to begin each new reaction on the right hand-facing page of the book, allowing overspill at a later date. | ||
Example. The first three reactions in MHT’s lab book are shown below. The first reaction here is the first in the lab book. This transformation is given the number ‘1.’ It is the first attempt at this reaction, and appears on page 1, hence it is called ‘MHT 1-1-1.’ The second reaction is the same transformation (remember, regardless of reagents), so also has X = 1. It is the second attempt, and appears on page 3 of the lab book, so has the identifier MHT 1-2-3. The third reaction is a different transformation, so has a different X, and this is the first time it has been done, so Y = 1, and has been entered on page 5 of the lab book, giving MHT 2-1-5. | Example. The first three reactions in MHT’s lab book are shown below. The first reaction here is the first in the lab book. This transformation is given the number ‘1.’ It is the first attempt at this reaction, and appears on page 1, hence it is called ‘MHT 1-1-1.’ The second reaction is the same transformation (remember, regardless of reagents), so also has '''X''' = 1. It is the second attempt, and appears on page 3 of the lab book, so has the identifier MHT 1-2-3. The third reaction is a different transformation, so has a different '''X''', and this is the first time it has been done, so '''Y''' = 1, and has been entered on page 5 of the lab book, giving MHT 2-1-5. | ||
[[Image:Reaction Numbering.png|thumb|500px| | [[Image:Reaction Numbering.png|thumb|500px|center|Examples of Reaction Numbering]] | ||
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Revision as of 04:34, 9 September 2010
Reaction NumberingReactions need to be given a unique identifier. The number takes the following form: Your Initials X-Y-Z where X is the reaction type, Y is the attempt number and Z is the page of your lab book where the reaction appears. A reaction type means ‘starting material-arrow-product.’ If you are attempting a certain transformation of a particular starting material to a particular product, then any attempt at that reaction has the same reaction number, regardless of reagents. The reaction also has this number regardless of the outcome. It is the intention that counts. Stereochemistry of products is also important – if the intended stereochemical outcome is different, the reaction has a different number. The numbering of reactions is unique to you, you do not use the same numbers as previous people in the group even if you are repeating their work. Attempt number just increases by 1 each time you do the reaction. Screening several different reaction conditions on small scale on the same page of your lab book can be named with ‘A’ ‘B’ ‘C’ after the full name if so desired, rather than exhaustively giving each reaction a different Y, so e.g. MHT 1-2-3A, MHT 1-2-3B etc. This also applies to multiple fractions/products collected from the same reaction. Z is the page number of your lab book where the reaction diagram appears. This number stays the same if the reaction write-up extends over more than one page. In fact it is a good idea to begin each new reaction on the right hand-facing page of the book, allowing overspill at a later date. Example. The first three reactions in MHT’s lab book are shown below. The first reaction here is the first in the lab book. This transformation is given the number ‘1.’ It is the first attempt at this reaction, and appears on page 1, hence it is called ‘MHT 1-1-1.’ The second reaction is the same transformation (remember, regardless of reagents), so also has X = 1. It is the second attempt, and appears on page 3 of the lab book, so has the identifier MHT 1-2-3. The third reaction is a different transformation, so has a different X, and this is the first time it has been done, so Y = 1, and has been entered on page 5 of the lab book, giving MHT 2-1-5. 
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