Matches in SemOpenAlex for { <https://semopenalex.org/work/W2026949402> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W2026949402 endingPage "172" @default.
- W2026949402 startingPage "166" @default.
- W2026949402 abstract "A new structure type (K) is reported for the disilicates of Nd, Sm, Eu, and Gd made at high pressure. Crystals of type K were synthesized at 10 GPa, 1600–1700°C in an MA6/8 superpress and used for single-crystal X-ray structure study by Kappa CCD diffractometry at room temperature. Crystal data are: monoclinic, space group P21/n, Z=4; Nd2Si2O7−a=6.6658(2), b=6.7234(3), c=12.3975(6) Å, β=102.147(3)°, V=543.2 Å3, R=0.029, and Dx=5.584 g/cm3; Sm2Si2O7−a=6.6039(3), b=6.6849(3), c=12.3069(5) Å, β=102.489(3)°, V=530.4 Å3, R=0.038, and Dx=5.871 g/cm3; Eu2Si2O7−a=6.5777(3), b=6.6652(4), c=12.2668(8) Å, β=102.671(4)°, V=524.7 Å3, R=0.030, and Dx=5.976 g/cm3; Gd2Si2O7−a=6.5558(4), b=6.6469(4), c=12.2394(6) Å, β=102.844(3)°, V=520.0 Å3, R=0.026, and Dx=6.166 g/cm3. The type K structure is built from a diorthosilicate group [Si2O7] interconnected by REE3+ cations in eightfold coordination with oxygen. The bridging oxygen (Si–O–Si) bond angle of the diorthosilicate group of rare earth disilicates stable at 1 bar (types A to G) is related to spatial accommodation of the REE3+ cation and ranges from 130 to 135° in the light rare earth disilicates (types A, F, G) to 180° in Lu2Si2O7 (type C). Volume reduction in the high-pressure type K structure is achieved largely by closure of the Si–O–Si bond angle to 122.7–124.4°, through rigid body rotation of the two SiO4 tetrahedra. This also permits a marginal increase in the average coordination of the REE3+ cation." @default.
- W2026949402 created "2016-06-24" @default.
- W2026949402 creator A5054560949 @default.
- W2026949402 creator A5062241671 @default.
- W2026949402 date "2001-10-01" @default.
- W2026949402 modified "2023-10-18" @default.
- W2026949402 title "High-Pressure Rare Earth Disilicates REE2Si2O7(REE=Nd, Sm, Eu, Gd): Type K" @default.
- W2026949402 cites W1969983825 @default.
- W2026949402 cites W1973743311 @default.
- W2026949402 cites W1985750143 @default.
- W2026949402 cites W1998211058 @default.
- W2026949402 cites W2020277519 @default.
- W2026949402 cites W2031841296 @default.
- W2026949402 cites W2048581030 @default.
- W2026949402 cites W2056877907 @default.
- W2026949402 cites W2060177063 @default.
- W2026949402 cites W2063526152 @default.
- W2026949402 cites W2081514820 @default.
- W2026949402 cites W2094261370 @default.
- W2026949402 cites W2101741054 @default.
- W2026949402 cites W2103805723 @default.
- W2026949402 cites W2150693361 @default.
- W2026949402 cites W2167590372 @default.
- W2026949402 cites W2331163895 @default.
- W2026949402 cites W2952487981 @default.
- W2026949402 cites W2953114327 @default.
- W2026949402 cites W2997479624 @default.
- W2026949402 cites W3107418551 @default.
- W2026949402 doi "https://doi.org/10.1006/jssc.2001.9315" @default.
- W2026949402 hasPublicationYear "2001" @default.
- W2026949402 type Work @default.
- W2026949402 sameAs 2026949402 @default.
- W2026949402 citedByCount "48" @default.
- W2026949402 countsByYear W20269494022012 @default.
- W2026949402 countsByYear W20269494022013 @default.
- W2026949402 countsByYear W20269494022014 @default.
- W2026949402 countsByYear W20269494022015 @default.
- W2026949402 countsByYear W20269494022017 @default.
- W2026949402 countsByYear W20269494022019 @default.
- W2026949402 countsByYear W20269494022020 @default.
- W2026949402 countsByYear W20269494022021 @default.
- W2026949402 countsByYear W20269494022022 @default.
- W2026949402 countsByYear W20269494022023 @default.
- W2026949402 crossrefType "journal-article" @default.
- W2026949402 hasAuthorship W2026949402A5054560949 @default.
- W2026949402 hasAuthorship W2026949402A5062241671 @default.
- W2026949402 hasConcept C115624301 @default.
- W2026949402 hasConcept C145148216 @default.
- W2026949402 hasConcept C178790620 @default.
- W2026949402 hasConcept C185592680 @default.
- W2026949402 hasConcept C199289684 @default.
- W2026949402 hasConcept C201770740 @default.
- W2026949402 hasConcept C2983155866 @default.
- W2026949402 hasConcept C2994492776 @default.
- W2026949402 hasConcept C32909587 @default.
- W2026949402 hasConcept C61276311 @default.
- W2026949402 hasConcept C73922627 @default.
- W2026949402 hasConcept C8010536 @default.
- W2026949402 hasConceptScore W2026949402C115624301 @default.
- W2026949402 hasConceptScore W2026949402C145148216 @default.
- W2026949402 hasConceptScore W2026949402C178790620 @default.
- W2026949402 hasConceptScore W2026949402C185592680 @default.
- W2026949402 hasConceptScore W2026949402C199289684 @default.
- W2026949402 hasConceptScore W2026949402C201770740 @default.
- W2026949402 hasConceptScore W2026949402C2983155866 @default.
- W2026949402 hasConceptScore W2026949402C2994492776 @default.
- W2026949402 hasConceptScore W2026949402C32909587 @default.
- W2026949402 hasConceptScore W2026949402C61276311 @default.
- W2026949402 hasConceptScore W2026949402C73922627 @default.
- W2026949402 hasConceptScore W2026949402C8010536 @default.
- W2026949402 hasIssue "1" @default.
- W2026949402 hasLocation W20269494021 @default.
- W2026949402 hasOpenAccess W2026949402 @default.
- W2026949402 hasPrimaryLocation W20269494021 @default.
- W2026949402 hasRelatedWork W1997420762 @default.
- W2026949402 hasRelatedWork W2008719449 @default.
- W2026949402 hasRelatedWork W2057834499 @default.
- W2026949402 hasRelatedWork W2058687949 @default.
- W2026949402 hasRelatedWork W2071006619 @default.
- W2026949402 hasRelatedWork W2360958765 @default.
- W2026949402 hasRelatedWork W2372241202 @default.
- W2026949402 hasRelatedWork W2383367391 @default.
- W2026949402 hasRelatedWork W2579210439 @default.
- W2026949402 hasRelatedWork W2950728881 @default.
- W2026949402 hasVolume "161" @default.
- W2026949402 isParatext "false" @default.
- W2026949402 isRetracted "false" @default.
- W2026949402 magId "2026949402" @default.
- W2026949402 workType "article" @default.