{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,1,12]],"date-time":"2025-01-12T05:14:48Z","timestamp":1736658888953,"version":"3.32.0"},"reference-count":0,"publisher":"International Union of Crystallography (IUCr)","issue":"6","license":[{"start":{"date-parts":[[2004,11,11]],"date-time":"2004-11-11T00:00:00Z","timestamp":1100131200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/2.0\/uk\/legalcode"},{"start":{"date-parts":[[2004,11,11]],"date-time":"2004-11-11T00:00:00Z","timestamp":1100131200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/2.0\/uk\/legalcode"}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["Acta Crystallogr B Struct Sci","Acta Cryst B","Acta Cryst Sect B","Acta Crystallogr B","Acta Crystallogr Sect B","Acta Crystallogr Sect B Struct Sci"],"accepted":{"date-parts":[[2004,10,13]]},"published-print":{"date-parts":[[2004,12,1]]},"abstract":"<jats:p>A systematic study is reported of the products of the nucleophilic substitution reactions of the spermine-bridged cyclotriphosphazene, [N<jats:sub>3<\/jats:sub>P<jats:sub>3<\/jats:sub>\n                  <jats:italic>X<\/jats:italic>\n                  <jats:sub>4<\/jats:sub>(NHCH<jats:sub>2<\/jats:sub>CH<jats:sub>2<\/jats:sub>CH<jats:sub>2<\/jats:sub>N)CH<jats:sub>2<\/jats:sub>CH<jats:sub>2<\/jats:sub>]<jats:sub>2<\/jats:sub> [where <jats:italic>X<\/jats:italic> = Cl (2<jats:italic>a<\/jats:italic>)], to give a number of new structures [(2<jats:italic>b<\/jats:italic>)\u2013(2<jats:italic>g<\/jats:italic>)] in which <jats:italic>X<\/jats:italic> = OPh, [spiro-O(CH<jats:sub>2<\/jats:sub>)<jats:sub>3<\/jats:sub>O]<jats:sub>0.5<\/jats:sub>, Ph, NHPh, NC<jats:sub>4<\/jats:sub>H<jats:sub>8<\/jats:sub> and NHBu<jats:sup>\n                     <jats:italic>t<\/jats:italic>\n                  <\/jats:sup>, respectively. A comparison has been made between the sum of the substituent basicity constants, \u03a3\u03b1<jats:sub>\n                     <jats:italic>R<\/jats:italic>\n                  <\/jats:sub>, obtained in nitrobenzene solution, and ten molecular parameters of the N<jats:sub>3<\/jats:sub>P<jats:sub>3<\/jats:sub> ring (the internal bond angles \u03b1, \u03b2, \u03b3, \u03b4 and \u03b8, and the P\u2014N bond lengths <jats:italic>a<\/jats:italic>, <jats:italic>b<\/jats:italic>, <jats:italic>c<\/jats:italic>, <jats:italic>d<\/jats:italic> and <jats:italic>e<\/jats:italic>) as well as the difference between the bond lengths <jats:italic>a<\/jats:italic> and <jats:italic>b<\/jats:italic>, \u0394(P\u2014N). It is found that the systematic change in molecular parameters of compounds (2<jats:italic>a<\/jats:italic>)\u2013(2<jats:italic>g<\/jats:italic>) is in line with changes in \u03b1<jats:sub>\n                     <jats:italic>R<\/jats:italic>\n                  <\/jats:sub> values, indicating the similarity in relative electron-releasing capacity of substituents <jats:italic>X<\/jats:italic> in the solid state and in solution. It is also found that the effect on molecular parameters of (2<jats:italic>a<\/jats:italic>)\u2013(2<jats:italic>g<\/jats:italic>) with two <jats:italic>X<\/jats:italic> substituents in P<jats:italic>X<\/jats:italic>\n                  <jats:sub>2<\/jats:sub> groups is greater than that for one <jats:italic>X<\/jats:italic> substituent in P(O<jats:italic>R<\/jats:italic>)<jats:italic>X<\/jats:italic> groups in an analogous series of compounds observed previously [Be\u015fli <jats:italic>et al.<\/jats:italic> (2002). <jats:italic>Acta Cryst.<\/jats:italic> B<jats:bold>58<\/jats:bold>, 1067\u20131073].<\/jats:p>","DOI":"10.1107\/s0108768104025947","type":"journal-article","created":{"date-parts":[[2004,11,9]],"date-time":"2004-11-09T09:49:00Z","timestamp":1099993740000},"page":"739-747","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":9,"title":["Structural investigations of phosphorus\u2013nitrogen compounds. 6. Relationships between molecular parameters in per-<i>X<\/i>-substituted bridged spermine derivatives and basicity constants \u03a3\u03b1<i>R<\/i> of substituents"],"prefix":"10.1107","volume":"60","author":[{"given":"Simon J","family":"Coles","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David B.","family":"Davies","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael B.","family":"Hursthouse","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adem","family":"Kili\u00e7","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thomas A.","family":"Mayer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert A.","family":"Shaw","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gonul","family":"Yenilmez \u00c7ift\u00e7i","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2004,11,11]]},"container-title":["Acta Crystallographica Section B Structural Science"],"original-title":[],"link":[{"URL":"http:\/\/journals.iucr.org\/b\/issues\/2004\/06\/00\/bm5015\/bm5015.pdf","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/journals.iucr.org\/b\/issues\/2004\/06\/00\/bm5015\/bm5015.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,1,11]],"date-time":"2025-01-11T13:54:03Z","timestamp":1736603643000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.iucr.org\/paper?S0108768104025947"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2004,11,11]]},"references-count":0,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2004,12]]}},"alternative-id":["S0108768104025947"],"URL":"https:\/\/doi.org\/10.1107\/s0108768104025947","relation":{"is-supplemented-by":[{"id-type":"doi","id":"10.1107\/S0108768104025947\/bm5015sup1.cif","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S0108768104025947\/bm5015sup2.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S0108768104025947\/bm5015sup3.pdf","asserted-by":"subject"}]},"ISSN":["0108-7681"],"issn-type":[{"type":"print","value":"0108-7681"}],"subject":[],"published":{"date-parts":[[2004,11,11]]},"assertion":[{"value":"Acta Crystallographica Section B: Structural Science","order":0,"name":"journal","label":"Publication","explanation":{"URL":"http:\/\/journals.iucr.org\/b"},"group":{"name":"general","label":"General"}},{"value":"research papers","order":1,"name":"content_type","label":"Content type","explanation":{"URL":"https:\/\/journals.iucr.org\/b\/services\/notesforauthors.html"},"group":{"name":"general","label":"General"}},{"value":"Available","URL":"http:\/\/scripts.iucr.org\/cgi-bin\/citedin?bm5015","order":2,"name":"article_metrics","label":"Article metrics","group":{"name":"general","label":"General"}},{"value":"Yes","order":0,"name":"peer_reviewed","label":"Peer reviewed","group":{"name":"peer_review","label":"Peer review"}},{"value":"Single blind","order":1,"name":"review_process","label":"Review process","group":{"name":"peer_review","label":"Peer review"}},{"value":"8 July 2004","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication history"}},{"value":"13 October 2004","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication history"}},{"value":"11 November 2004","order":2,"name":"published_online","label":"Published online","group":{"name":"publication_history","label":"Publication history"}},{"value":"This article has supporting information","name":"supplementary_materials","label":"Supplementary materials","explanation":{"URL":"http:\/\/scripts.iucr.org\/cgi-bin\/sendsup?bm5015"}},{"value":"\u00a9 2004 International Union of Crystallography","order":0,"name":"copyright","label":"Copyright","explanation":{"URL":"http:\/\/journals.iucr.org\/services\/copyrightpolicy.html"},"group":{"name":"copyright_and_licensing","label":"Copyright and licencing"}}]}}