-alchene- Flashcards

1
Q

Cum se realizeaza denumirea alchenelor?

A

leg dubla in catena principala si pe
pozitie minima

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2
Q

lungimea C=C

A

1,33 A

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3
Q

lungimea leg C-H

A

1,079 A

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4
Q

unghiurile formate de at de C in dubla leg?

A

formeaza 3 leg sigma coplanare cu 120grade

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5
Q

Reactivitatea alchenelor este data de?

A

leg pi este mai slaba decat leg sigma

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6
Q

impiedicarea rotatiei libere in jurul legaturii duble este datorata?

A

leg pi se gaseste intr un plan perpendicular cu planul leg sigma

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7
Q

conditia necesara ca o alchena sa prezinte iz geometrica

A

sa aibe substituenti diferiti la fiecare dintre cei 2 at C implicati in dubla leg

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