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Chem 108 library session answer key

Chem 108 library session answer key. 5.1. Me 3 Si–O–SiMe 3. How many results do you find when you conduct a substructure search? 44

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Chem 108 library session answer key

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  1. Chem 108 library sessionanswer key

  2. 5.1 • Me3Si–O–SiMe3

  3. How many results do you find when you conduct a substructure search? • 44 • Think about the structures you viewed and compare them to the structure you drew originally (HMDSO). Is there a pattern? (In other words, how are these compounds related to your original structure?) • The original structure (the connectivity of elements) is a part of the retrieved molecule

  4. What do you think a substructure search is doing? Think sub and structure. • if you draw a chemical fragment or pattern, it will retrieve molecules that contain that fragment or pattern

  5. 11 - What is HMDSO’s molecular weight? • 162.379 • Synthetic use? • reagent for synth. of benzoyl chlorides; silylating agent for conversion of alcohols → silyl ethers; silylates carboxylic acids in presence of catalytic H2SO4 • a reference article that provide the Si-29 NMR spectra • Harris, R.K. et al., J. Magn. Reson., 1975, 17, 174 • HMDSO synthesis • Synth. from Me3SiCl + H2O

  6. 6.2 • 1 • C10H15Na

  7. NaCp* • 3 • CAS-RN 40585-51-1 • Derivative = Tris-Pycomplex • Derivative is a solid

  8. 8.2

  9. 8.3 • Substances found = 591

  10. 8.6 ferrocene • IR absorption peaks • 3100 • 1400 • 1150 • 1000 • 800 • 500 • Boiling point • 249 °C

  11. 10.1 preparation of ferrocene • 3d • Articles published before 1953 • 22 articles • Oldest article in SciFinder • 1951 publication

  12. 10.2 citation 1. Kealy, T. J.; Pauson, P. L. Nature (London, U. K.). 1951, 168, 1039-40.

  13. 11.3.2 • Publication year of the oldest article cited • 1975 11.3.3 • Articles citing Maroun et al. (2001) = 92 • Published in 2005 = 3

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