Crystal Packing and Supramolecular Motifs in Four Phenoxyalkanoic Acid Herbicides—Low-Temperature Redeterminations

Table 3

Close contacts of hydrogen bond type [Å and °] for compounds 1–4.

D–H⋯A	D–H	H⋯A	D⋯A	D–H⋯A
1
O1–H1⋯O2^i	0.82 (2)	1.81 (2)	2.6342 (15)	178 (3)
C6–H6⋯O1^ii	0.90 (2)	2.56 (2)	3.4253 (19)	161.6 (19)
C7–H71⋯Cg1^iii	0.98 (2)	2.66 (2)	3.4207 (16)	134.4 (13)
2
O1–H1⋯O2^iv	0.82 (3)	1.83 (3)	2.645 (2)	176 (3)
C7–H7⋯O2^v	0.97 (2)	2.72 (2)	3.474 (2)	135.6 (14)
C7–H7⋯O3^v	0.97 (2)	2.71 (2)	3.647 (2)	164.0 (15)
3
O1–H1⋯O2^vi	0.82 (2)	1.81 (2)	2.6330 (13)	178.2 (13)
C3–H3⋯O2^vii	0.95 (2)	2.54 (2)	3.4335 (14)	157.2 (13)
C7–H71⋯O3^viii	0.94 (1)	2.47 (1)	3.2454 (14)	140.0 (12)
C7–H72⋯O1^iv	0.97 (2)	2.54 (2)	3.5073 (15)	173.0 (12)
4
O1–H1⋯O2^ix	0.81 (2)	1.85 (2)	2.6578 (12)	172.4 (18)
C5–H5⋯O2^x	0.93 (1)	2.72 (1)	3.4078 (13)	131.0 (11)
C6–H6⋯O1^xi	0.96 (2)	2.74 (2)	3.6937 (13)	179.4 (14)
C7–H71⋯Cl4^xii	0.99 (2)	2.89 (2)	3.7830 (14)	151.3 (12)
C8–H81⋯O3^xiii	0.97 (1)	2.78 (2)	3.7390 (13)	176.4 (11)
C8–H82⋯Cg1^xiv	0.98 (2)	2.70 (2)	3.5369 (13)	143.5 (12)

Cg1 = centroid C(1–6).
Symmetry codes: ⁱ −𝑥−1, −𝑦+2 −𝑧; ⁱⁱ −𝑥, −𝑦+1, −𝑧; ⁱⁱⁱ𝑥−1, 𝑦, 𝑧; ^iv −𝑥+1, −𝑦, −𝑧; ^v𝑥+1, 𝑦,𝑧; ^vi −𝑥, −𝑦, −𝑧; ^vii −𝑥+1, −𝑦+1, −𝑧+1; ^viii −𝑥+1, −𝑦+1, −𝑧; ^ix −𝑥+1, −𝑦−1, −𝑧+2; ^x𝑥−1, 𝑦+1, 𝑧; ^xi −𝑥, −𝑦, −𝑧+2; ^xii −𝑥, −𝑦+1, −𝑧+1; ^xiii −𝑥+1, −𝑦, −𝑧+1; ^xiv −𝑥, −𝑦, −𝑧+1.