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. 2018 Jan 19;23(1):207. doi: 10.3390/molecules23010207

Table 2.

Hydrogen bonding (Å) between SCX4 host and guests.

Guest	No Buffer			Buffer
Guest	O^…HOS ^a	P=O^…HOS	OH^…O₃S	OH^…O₃S
DIMP	1.859	1.642
DEMP	1.899
PMP	1.993	1.676	1.711	1.429
GD	2.143

^a bridging to the P-O-R oxygen except for PMP where it is P-O-H.