Molecular models Flashcards

1
Q

Physical models that represent molecules and also the atoms and bonds found in these molecules

A

Molecular models

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2
Q

Molecular models represent molecules with _________

A

balls of different colors

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3
Q

Molecular models represent bonds with ________

A

Stick or short connectors

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4
Q

Disadvantage of 2D structures

A

can’t appreciate the geometry accurately

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5
Q

Advantage of ball and stick model

A

accurately represent shape

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6
Q

Other ways of drawing structures

A

perspective formula and space-filling formula

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7
Q

Can ethane have hydrogen that is found on the same plane?

A

No

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8
Q

does hydrogen lies on the same for ethene

A

yes

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9
Q

Exists due to rotation of single bonds

A

Conformation isomers

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10
Q

Conformational isomers include:

A

Aliphatic and alicyclic alkanes

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11
Q

are conformational isomers the same compound

A

yes

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12
Q

why is staggered more stable that eclipsed

A

the electron cloud of staggered is more far away from each other

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13
Q

the electron clouds of two hydrogen repel each other and strain due to how close they are

A

flagpole hydrogen

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14
Q

reason why bat conformation is unstable

A

flagpole hydrogen

If structure is rotated, the carbons are in eclipsed conformation leading to unstability

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15
Q

Are boat and chair conformation the same compound

A

yes

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16
Q

True or false: geometric isomers are configurational isomers

A

true

17
Q

Differences of configurational and conformational isomers

A

they are not interconvertible and not due to rotation about single bonds

18
Q

type of conformational isomers due to restricted rotation about double bonds or alicylic

A

geometric isomers

19
Q

are geometric isomers the same compounds

A

no, they are different compounds since the double bond can not be rotated and possesses its properties double

20
Q

how to change the geometric isomers

A

bond must be broken

20
Q

differences between geometric sequence of double bonds and alkenes

A

alkenes the double bond is reference point, while the ring is the reference point for alicylic.

20
Q

Does di-substituted cycloalkanes have geometric isomers as well

A

yes

21
Q

what do you look for in alkenes

A

substituent on same or opposite side with respect the double bond as opposed to the ring

22
Q

does aromatic rings have geometric isomers

A

No, since the rings are sp2 hybridized leading to trigonal planar