{"@context":"http://iiif.io/api/presentation/2/context.json","@type":"sc:Manifest","@id":"https://iiif.quartexcollections.com/portland/iiif/a6323783-a292-43c3-bca1-797cb9ef093a/manifest","label":"Structures of (±) cis 2-hydroxy-4-(2-phenylethyl)- (I) a","metadata":[{"label":"Title","value":"Structures of (±)-cis-2-hydroxy-4-(2-phenylethyl)- (I) and cis-4-phenyl-2-methyl-3,4-dihydro-2H,5H-pyrano[3,2-c][1]benzopyran-5-one (II)"},{"label":"Collection","value":["Chemistry Faculty Publications"]},{"label":"Relation","value":"chm"},{"label":"Author","value":"Gerard Ruggiero, Edward J. Valente, Drake S. Egglestone"},{"label":"Journal Title","value":"Acta Crystallographica Section C"},{"label":"Abstract","value":"Derivatives of 2-methyl-3,4-dihydro-2H,5H-pyrano[3,2-c][1]benzopyran-5-one. (I) Racemic cis-2-hydroxy-4-(2-phenylethyl), C21H20O4, Mr = 336·39, triclinic, P1̄, a = 8·660 (7), b = 14·299 (4), c= 7·320 (4) Å, α = 96·68 (3), β = 99·07(5), γ = 87·554(4)°, V = 888·8(16)Å3, Z = 2, Dx = 1·257 g cm-3, λ(Mo Kα) = 0·71078 Å, μ = 0·807 cm-1, F(000) = 354, T = 294 K, final R = 0·045 for 2844 observations [I ≥ 3δ(I)]. Molecules are hydrogen bonded between hydroxyls and coumarin carbonyl groups in chains along c, with O···O separation of 2·772 (2) Å. The dihydropyran ring is a half-chair, ΔC2 = 0·0057 (8). (II) Spontaneously resolved cis-4-phenyl, C19H16O3, Mr = 292·34, monoclinic, P21, a = 8·267 (6), b = l0·699 (7), c = 9·039 (6) Å, β =113·67(6)°, V = 732·2 (18) Å3, Z = 2, Dx = 1·326 g cm-3, λ(Mo Kα) = 0·71078 Å, μ = 0·831 cm-1, F(000) = 308, T = 294 K, final R = 0·061 for 2149 observations [I ≥ 3δ(I)]. The dihydropyran ring is in the d,e-diplanar conformation, ΔC2 = 0·0569 (13), and retains the relatively long C—O bond, 1·474 (2) Å, compared to its 2-hydroxy derivatives."},{"label":"DOI","value":"10.1107/S0108270189001034"},{"label":"Volume","value":"45"},{"label":"Issue","value":"9"},{"label":"Publication Date","value":"D:00 M:09 Y:1989"},{"label":"Publication Information","value":"Copyright 1989 International Union of Crystallography. The original published version of this article may be found at http://dx.doi.org/10.1107/S0108270189001034."}],"description":"Structures of (±)-cis-2-hydroxy-4-(2-phenylethyl)- (I) and cis-4-phenyl-2-methyl-3,4-dihydro-2H,5H-pyrano[3,2-c][1]benzopyran-5-one (II)","sequences":[{"@type":"sc:Sequence","canvases":[{"@id":"https://iiif.quartexcollections.com/portland/iiif/a6323783-a292-43c3-bca1-797cb9ef093a/canvas/_1","@type":"sc:Canvas","label":"Structures of (±) cis 2-hydroxy-4-(2-phenylethyl)- (I) a-2","height":1442,"width":1012,"images":[{"@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"https://iiif.quartexcollections.com/portland/iiif/a4d6a07d-ed8c-4fee-b185-068958b8583a/full/full/0/default.jpg","@type":"dctypes:Image","format":"image/jpeg","service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"https://iiif.quartexcollections.com/portland/iiif/a4d6a07d-ed8c-4fee-b185-068958b8583a","profile":"http://iiif.io/api/image/2/level2.json","tiles":[{"width":512,"scaleFactors":[1,2,4]}]},"height":1442,"width":1012},"on":"https://iiif.quartexcollections.com/portland/iiif/a6323783-a292-43c3-bca1-797cb9ef093a/canvas/_1","metadata":[]}],"thumbnail":{"@id":"https://iiif.quartexcollections.com/portland/iiif/a4d6a07d-ed8c-4fee-b185-068958b8583a/full/500,500/0/default.jpg","@type":"dctypes:Image","height":500,"width":500}},{"@id":"https://iiif.quartexcollections.com/portland/iiif/a6323783-a292-43c3-bca1-797cb9ef093a/canvas/_2","@type":"sc:Canvas","label":"Structures of (±) cis 2-hydroxy-4-(2-phenylethyl)- (I) a-3","height":1453,"width":1082,"images":[{"@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"https://iiif.quartexcollections.com/portland/iiif/05878456-fa01-48bc-a7af-43a7cde4897c/full/full/0/default.jpg","@type":"dctypes:Image","format":"image/jpeg","service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"https://iiif.quartexcollections.com/portland/iiif/05878456-fa01-48bc-a7af-43a7cde4897c","profile":"http://iiif.io/api/image/2/level2.json"},"height":1453,"width":1082},"on":"https://iiif.quartexcollections.com/portland/iiif/a6323783-a292-43c3-bca1-797cb9ef093a/canvas/_2","metadata":[]}],"thumbnail":{"@id":"https://iiif.quartexcollections.com/portland/iiif/05878456-fa01-48bc-a7af-43a7cde4897c/full/500,500/0/default.jpg","@type":"dctypes:Image","height":500,"width":500}},{"@id":"https://iiif.quartexcollections.com/portland/iiif/a6323783-a292-43c3-bca1-797cb9ef093a/canvas/_3","@type":"sc:Canvas","label":"Structures of (±) cis 2-hydroxy-4-(2-phenylethyl)- (I) a-4","height":1467,"width":1072,"images":[{"@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"https://iiif.quartexcollections.com/portland/iiif/b0f778c8-37bd-4c54-bbec-4d104f2b753d/full/full/0/default.jpg","@type":"dctypes:Image","format":"image/jpeg","service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"https://iiif.quartexcollections.com/portland/iiif/b0f778c8-37bd-4c54-bbec-4d104f2b753d","profile":"http://iiif.io/api/image/2/level2.json"},"height":1467,"width":1072},"on":"https://iiif.quartexcollections.com/portland/iiif/a6323783-a292-43c3-bca1-797cb9ef093a/canvas/_3","metadata":[]}],"thumbnail":{"@id":"https://iiif.quartexcollections.com/portland/iiif/b0f778c8-37bd-4c54-bbec-4d104f2b753d/full/500,500/0/default.jpg","@type":"dctypes:Image","height":500,"width":500}},{"@id":"https://iiif.quartexcollections.com/portland/iiif/a6323783-a292-43c3-bca1-797cb9ef093a/canvas/_4","@type":"sc:Canvas","label":"Structures of (±) cis 2-hydroxy-4-(2-phenylethyl)- (I) a-5","height":1482,"width":1128,"images":[{"@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"https://iiif.quartexcollections.com/portland/iiif/6e5af38e-b189-4115-837a-e3e9a486f79e/full/full/0/default.jpg","@type":"dctypes:Image","format":"image/jpeg","service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"https://iiif.quartexcollections.com/portland/iiif/6e5af38e-b189-4115-837a-e3e9a486f79e","profile":"http://iiif.io/api/image/2/level2.json"},"height":1482,"width":1128},"on":"https://iiif.quartexcollections.com/portland/iiif/a6323783-a292-43c3-bca1-797cb9ef093a/canvas/_4","metadata":[]}],"thumbnail":{"@id":"https://iiif.quartexcollections.com/portland/iiif/6e5af38e-b189-4115-837a-e3e9a486f79e/full/500,500/0/default.jpg","@type":"dctypes:Image","height":500,"width":500}}]}],"thumbnail":"https://iiif.quartexcollections.com/portland/iiif/a4d6a07d-ed8c-4fee-b185-068958b8583a/full/300,300/0/default.jpg","logo":"https://iiif.quartexcollections.com/portland/iiif/logo"}