17.5 Flashcards
What is a square planar shape
it is a shape that contains a central atom or ion surrounded by 4 atoms or ligands in the same plane with bond angles of 90
what are the examples of square planers
Xenon tetrafluoride, and Cis-PLATIN
How does Xenon tetrafluoride form a square planar
4 electrons within xenon outer shell form 4 covalent bonds with 4 fluoride ions, with the 4 electrons (2 pairs) being left and repelling each other completely putting the fluoride ligands in a corner of a square forming a bond angle of 90
why does cis-Platin form a square planar
outside our scope, but easy answer is that its in period 6 and behaves differently
cis and E are for
the the atoms are in the same plane
Trans and Z mean
when the atoms are across each other
how do you draw cis-platin and trans-platin complexes
page 194
what is the the use of Cis-platin
treatment for cancer
how does cis-platin treat cancer
so all cells have DNA when cancer cell division occurs to form more cancer cell the DNA must separate from each other but cis-platin would form a bond between the two strands of DNA which prevents them from separating and so prevents cancer cells
why do we use cis-platin in treatment of cancer but not trans-platin
because cis is more effective and trans is toxic
