Table 6:

Typical parameters for 2D-CHHC experiments.

MAS rate: 10 kHz (rotor period, τr =100 μs)
Pulse	Power (kHz)	Duration (μs)	Phase
pH,1	110	2.27	(y)16, (−y)16
pH,2	Linear ramp: 40 to 80	2,000	x
pH,3	Linear ramp between 66.67 and 53.33	150	x,x,y,y,−x,−x,−y,−y
pH,4	110	2.27	y,y,−x,−x,−y,−y,x,x
pH,5	110	2.27	−y,−y,x,x,y,y,−x,−x,y,y,−x,−x,−y,−y,x,x
p,H,6	Linear ramp between 66.67 and 53.33	150	x,x,y,y,−x,−x,−y,−y
pC,1	50	2,000	x
pC,2 (π/2 pulse)	50	5	y
pC,3	50	5	−y,y and −x,x for each t1
pC,4	50	5	x
pC,5	50	5	x,x,y,y,−x,−x,−y,−y
ϕReceiver	x,−x,y,−y,−x,x,−y,y,−x,x,−y,y,x,−x,y,−y,−x,x,−y,y,x,−x,y,−y,x,−x,y,−y,−x,x,−y,y
Delay	Duration (ms)
d1	2
td (z-filter)	3
t1	varied during 2D acquisition
Mixing time	Duration (μs)
τ	2 τr = 200
Decoupling period	Power (kHz)		Method
dec1	110		TPPM