# Species Formula 4531 Strontium dichloride, cationCl2Sr 4532 Strontium dichloride (Geo)Cl2Sr 4533 Strontium dichlorideCl2Sr 4534 cis-Sr(II)(H2O)4.Cl2H8O4Cl2Sr 4535 cis-Sr(II)(H2O)4.Cl2 (Geo)H8O4Cl2Sr 4536 Strontium monobromide (Geo)BrSr 4537 Strontium monobromideBrSr 4538 Sr(II)(H2O)5.BrH10O5BrSr 4539 Sr(II)(H2O)5.Br (Geo)H10O5BrSr 4540 Strontium dibromideBr2Sr 4541 Sr(II)N5Br2 (TANWAG) (Geo) C25H25N5Br2Sr 4542 Sr(II)N5Br2 (TANWAG)C25H25N5Br2Sr 4543 cis-Sr(II)(H2O)4.Br2H8O4Br2Sr 4544 cis-Sr(II)(H2O)4.Br2 (Geo)H8O4Br2Sr 4545 Yttrium, cationY 4546 Yttrium, atomY 4547 Trimethyl yttrium(III) (Geo)C3H9Y 4548 Bicyclopentadienyl yttrium(II) (Geo)C10H10Y 4549 Tricyclopentadienyl yttrium(III)C15H15Y 4550 Y(Cp)2CN (CIGZEX) (Geo)C19H22NY 4551 Y(Cp)2CN (CIGZEX)C19H22NY