Question

Note to moderator: please read the answerline carefully. Some molecular dimers can display two values of this measured quantity due to Davydov splitting. When placed in solution, PIC (“P-I-C”) chloride experiences an increase in this quantity due to supramolecular self-aggregation, making a structure called a J-aggregate. Shifts that increase or decrease this non-dimensionless quantity are respectively named using the prefixes “batho” and “hypso.” By counting features like alkyl groups, (*) exocyclic double bonds, and bonds that extend conjugation, one can estimate this quantity with the Woodward-Fieser rules. When measuring concentration with Beer's law, you should first find this quantity to increase the measurement’s signal-to-noise ratio. For 10 points, name this quantity, the color of light that produces the biggest signal in absorption spectra. (-5[1])■END■ (10[2]0[3])

ANSWER: maximum wavelength of absorption [or lambda-max; or the primary absorption wavelength in UV-Vis spectroscopy; accept answers that use peak, largest, biggest, or other synonyms in place of “maximum”; BEFORE “self-aggregation”, accept answers that say frequency or energy in place of the word “wavelength”, reject answers with “frequency” or “energy” after “self-aggregation”; prompt on wavelength or lambda; reject “absorbance”]
<BB>
= Average correct buzz position

Back to tossups

Buzzes

PlayerTeamOpponentBuzz PositionValue
Colin VeeversNeg 5! Playing Quizbowl, Liddy StyleMilan et al.120-5
Maude-Sophie LockmanParth et al.Cameron et al.1210
Andrej VukovicCameron et al.Parth et al.1210
Russell NipMilan et al.Neg 5! Playing Quizbowl, Liddy Style12110
Tony ChenThe Passion According to C.H.The Vulture's Guide to Buzz1210
Liam KusalikThe Vulture's Guide to BuzzThe Passion According to C.H.12110

Summary

2023 BHSU @ Northwestern02/25/2023Y683%0%33%105.60
2023 BHSU @ Maryland03/11/2023Y367%0%33%110.50
2023 BHSU @ Berkeley03/18/2023Y367%0%67%120.50
2023 BHSU @ Yale04/08/2023Y3100%67%0%64.00
2023 BHSU Online04/15/2023Y4100%25%25%96.00
2023 BHSU @ Sheffield04/15/2023Y20%0%50%0.00
2023 BHSU @ Waterloo04/15/2023Y367%0%33%121.00