The reactions of SrCl2.6H(2)O or Sr(NO3)(2) in CH3CN (in the presence of NH4OH(aq)) with polyethylene glycols (PEGs : triethylene glycol(EO3), tetraethylene glycol (EO4), pentaethylene glycol (EO5), or hexaethylene glycol (EO6)) in 1/1 stoichiometries lead to the isolation of directly coordinated complexes. X-ray structural analyses of nine of these complexes have been carried out. The chlorides crystallize as discrete ions with the strontium cations surrounded by 8-10 oxygen donors and the chloride ions hydrogen bonded in the lattice. The EO3 and EO4 complexes have a 2/1 PEG/Sr2+ stoichiometry while the EO5 and EO6 complexes can support only a 1/1 ratio but complete the Sr2+ coordination sphere with H2O molecules. Both a hydrated and an anhydrous form of the EO4 complex were isolated. Cell data for the five SrCl2/PEG complexes are as follows. [Sr(EO3)(2)]Cl-2 (C222(1)) (at 19 degrees C) : a = 8.737(4) Angstrom, b = 18.609(9) Angstrom, c = 12.548(9) Angstrom, and D-calc = 1.49 g cm(-3) for Z = 4. [Sr(EO4)(2)]Cl-2 (C2/c) (at 20 degrees C) : a = 17.528(9) Angstrom, b = 9.209(3) Angstrom, c = 17.180(9) Angstrom, beta = 121.13(8)degrees, and D-calc = 1.53 g cm(-3) for Z = 4. [Sr(EO4)(2)]Cl-2.3H(2)O (P2(1)/n) (at 19 degrees C) : a = 12.225(7) Angstrom, b = 18.336(9) Angstrom, c = 12.258(9) Angstrom, beta = 90.25(5)Angstrom, and D-calc = 1.45 g cm(-3) for Z = 4. [Sr(OH2)(3)(EO5)]Cl-2 (P ($) over bar 1) (at 18 degrees C) : a = 8.217(9) Angstrom, b = 9.000(8) Angstrom, c = 14.514(8) Angstrom, alpha = 75.55(6)degrees, beta = 83.33(7)degrees, gamma = 69.59(9)degrees, and D-calc = 1.54 g cm(-3) for Z = 2. [Sr(OH2)(2)(EO6)]Cl-2.H2O (P2(1)/n) (at 18 degrees C) : a = 9.741(6) Angstrom, b = 16.534(3) Angstrom, c = 13.600(4) Angstrom, beta = 100.16(4)degrees, and D-calc = 1.52 g cm(-3) for Z = 4. The Sr(NO3)(2)/EO4-EO6 complexes all crystallize as tight ion pairs with trans nitrates and a nearly equatorial girdle of oxygen donors. To three structurally stoichiometries and are all 10-coordinate., The achieve 10-coordination the EO4 complex crystallizes as a monohydrate and in the EO6 complex the ligand is only hexadentate. The Sr(NO3)2/EO3 complex is also 10-coordinate but achieves this with two coordinated glycols and one bidentate nitrate anion.