The ${?}^{15}N-{\{}^{1}H\}$ spectrum of $,[Pt{(}^{15}N{H}_3{)}_3(H_{2}O){]}^{2+}(Cl{O}_4^{-}{)}_2,H_{2}O$ in

recorde

d at $10\mathrm{.}1MHz,$ and ${?}^{15}N{H}_{4}N{O}_3$ as standard reference compound to give peak at $1$ ppm$.$

What does the symbol ${\{}^{1}H\}$ mean, and why would this type of spectrum be used for this

complex?

Using the method of successive splitting, draw the splitting diagram that you would expect

for

$[Pt{(}^{15}N{H}_3{)}_3(H_{2}O){]}^{2+}$

${?}_2$ and use this to account for the form of the spectrum observed. You should

include an explanation of the number of lines and their relative intensities in your

answer. $[$Note: ${?}^{2}J(N,N)$ coupling would normally be expected but unfortunately is

not observable in these spectra.$]?$

Determine the values of the chemical shifts for the $N$ resonances and the coupling constants

$($in $Hz)?$

Describe the Pt $-{\{}^{1}H\}$ spectrum that you would expect for this complex?