The reaction of [ircla(tht)s] (tht-tetrahydrothiophene) with allyllithium gave a neutral organometallic complex, compound a which does not have cl or tht ligands. compound a was found to undergo addition reactions with: (a) 1 mol of pphs to give compound b and (b) 2 mols of pme3 to give compound c. compounds a, b and c obey the 18 electron rule. draw the structures of compounds a, b and c clearly indicating mode of bonding of ligands involved reference paper: k. d. john, k. v. salazar, b. l. scott, r. t. baker and a. p. sattelberger, "chemistry of m(allyl)3 (m rh, ir) compounds: structural characterization of tris(allyl)iridium complexes with phosphorus ligands". chem. commun, 2000, 581-582

Ithink that the use of creativity in the sciences entails that one produce something out of nothing or from another thing. with this, i think that the he wrote down his results as four parts of the atomic theory is the manifestation of the  creativity of john dalton.

In order to improve results, many different steps can be taken into account. 1) using more precise scales and thermometers is always something that should be considered as being precise means that you are more exact with your answer.2) increasing the sample size should also be considered, if you have a bigger sample size you are able to determine if your results are accurate as well as if there are any variables that should be taken into account plus it assists in the statistical analysis and produces overall better data3) using better handwriting is also a plus, along with organizing the data properly so that others are also able to read the results and even redo the experiment in the future if it is needed.