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This phenomenon is represented by a line that connects a metal to the bond of a hydrogen atom and R group when describing sigma complexes. For 10 points each:
[10h] Name this phenomenon in coordination chemistry in which a d orbital can be filled by interacting with a covalent bond between a hydrogen and a carbon on a ligand.
ANSWER: agostic interactions
[10m] Agostic interactions result in the formation of one of these electron-deficient bonds also exhibited by trihydrogen and diborane. These types of bonds in boron-hydrogen cluster compounds are described by Wade’s rules.
ANSWER: three-center two-electron bonds [or 3c-2e bonds]
[10e] 3c-2e bonds often create complexes with this geometry. Water takes on this geometry due to its two lone pairs according to VSEPR theory.
ANSWER: bent [accept angular or V-shaped]
<Chemistry>
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TeamOpponentPart 1Part 2Part 3TotalParts
Arizona StateYale0101020ME
Chicago BHarvard001010E
Columbia AUC Berkeley A001010E
Columbia BWinona State001010E
Cornell AJohns Hopkins10101030HME
Cornell BNorth Carolina B001010E
Georgia StateFlorida001010E
Georgia TechIowa State001010E
Illinois AChicago A0101020ME
LSEPenn State001010E
MITVirginia Tech0101020ME
MarylandOhio State001010E
MichiganRIT001010E
MinnesotaToronto C001010E
NYUWUSTL B0101020ME
North Carolina ARutgers001010E
NorthwesternIndiana10101030HME
TexasToronto B001010E
Toronto AWUSTL A0101020ME
UC Berkeley BOttawa001010E
UCFIllinois B0101020ME
VanderbiltVirginia001010E
Waterloo AStanford0101020ME
Waterloo BBritish Columbia1001020HE

Summary

TournamentExact Match?HeardPPBEasy %Medium %Hard %
2025 ACF NationalsYes2415.00100%38%13%