Question

the nickel-DMG complex formed in the analysis of ni2+ ions is formed by the donation of electron from nitrogen and not from oxygen in the oxime part of dmg??

Answer 1

According to this paper, which is quite old, both can be involved:

http://rd.springer.com/article/10.1007/BF00798309

I'm not sure what question you're asking anyway. It's certainly plausible that either the N or O could be involved in coordination. Which it actually is could be settled only by experiment, or some pretty careful MO calculations.

Answer 2

swagger jagger xD

Answer 3

is this a question or a statement?

Answer 4

QUESTION...IT IS

I AM ASKING AS TO WHY COMPLEX FORMATION OCCURS VIA NITROGEN AND NOT FROM OXYGEN WHICH IS ALSO PRESENT IN THE MOLECULE!

Answer 5

@CARL- THE PAPER IS RELATED TO THE COMPLEXING AGENT _ N,N-DIMETHYL GLYCINE AND NOT DIMETHYLGLYOXIME.
BOTH ARE DIFFERENT!!

Answer 6

if you look at the geometry, it's impossible for the metal ligand to be coordinated with the Ni

Answer 7

IS IT???
I WAS THINKING THAT A 6 MEMBERED RING WILL FORM IF DONATION OCCURS FROM OXYGEN, WHICH IS ALSO STABLE. I GUESS!!
I DONT THINK THERE WILL BE ANY COMPLICATIONS REGARDINGTHE GEOMETRY

Answer 8

6 membered ring where?

Answer 9

THE TWO RINGS ON THE LEFT AND RIGHT SIDES..!!
I REALLY DONT THINK ITS THE GEOMETRY OF THE COMPLEX.

IT MAY BE THE HYDROGEN BONDING BETWEEN OXYGEN ATOMS .... SOMETHING LIKE THAT.
BUT I M NOT SURE!!!

Answer 10

hydrogen bonding between oxygen atoms, what?

Answer 11

I agree with aaronq, the geometry favors coordination from the N. I don't see how you can get a 6-membered ring using the oxygens, but feel free to draw one to illustrate if you disagree. You'll also note aaronq's structure has two H-bonds as sugar on top.

Answer 12

@AARONG
LOOK AT THE PICTURE YOU POSTED HERE
350pxnidimethylglyoximecomplex.svg.png
THE DOTTED LINES ARE DUE TO HYDROGEN BONDING BETWEEN OXYGEN ATOMS IN BETWEEN THE TWO DIMETHYLGLYOXIME LIGANDS..!! HAVE A LOOK YOU WILL FIND IT/

Answer 13

NOW I AM GETTING YOU CARL....
AND I FEEL ITS RIGHT ....

Answer 14

you mean the hydrogen to the oxygen, at the top and bottom?

Answer 15

YUP

Answer 16

cuz you said oxygen to oxygen

Answer 17

thats why i was confused

Answer 18

MY BAD.
APLOLOGIE 4 IT!

Answer 19

no worries dude

Answer 20

THANKS FOR UR HELP
CARL AND AAROND..

THANKUU!!!!!!!