Synthesis, Solution, and Structural Characterization of Tetrahydrofuranyl-2,2-Bisphosphonic Acid Disodium Salt

Table 2

Selected bond lengths (Å) for Na₂H₂L.

C(1)–O(1)	1.48 (2)	P(1)–O(2)	1.571 (8)
C(1)–C(2)	1.50 (2)	P(1)–O(3)	1.499 (7)
C(2)–C(3)	1.59 (3)	P(1)–O(4)	1.499 (5)
C(3)–C(4)	1.50 (4)
C(4)–O(1)	1.42 (2)	P(2)–O(5)	1.507 (7)
C(1)–P(1)	1.834 (9)	P(2)–O(6)	1.493 (7)
C(1)–P(2)	1.833 (7)	P(2)–O(7)	1.567 (7)
Na(1)–O(2)	2.625 (7)	Na(2)–O(1)	2.79 (2)
Na(1)–O(3)	2.335 (7)	Na(2)–O(2)	2.494 (8)
Na(1)–O(3^′)	2.671 (8)	Na(2)–O(3)	2.371 (7)
Na(1)–O(4)	2.449 (8)	Na(2)–O(5)	2.405 (7)
Na(1)–O(5)	2.480 (7)	Na(2)–O(6)	2.423 (8)
Na(1)–O(6)	2.327 (7)	Na(2)–O(6^′)	2.458 (6)

aStandard deviations are given in parentheses.
bSymmetry operations: 𝑥, 𝑦, 𝑧; −𝑥, −𝑦, −𝑧.