Iodine(I) pnictogenate complexes as Iodination reagents

Halogen(I) complexes are widely used as halogenation reagents and traditionally feature homoleptic stabilising Lewis bases, though the recent revitalisation of iodine(I) carboxylate chemistry has provided isolable examples of heteroleptic iodine(I) complexes. This work reports iodine(I) pnictogenate complexes stabilised by a Lewis base (L), Ph2P(O)O─I─L, synthesised via cation exchange from the silver(I) precursor, (Ph2P(O)OAg)n. The complexes were characterised in both solution (1H, 1H-15N HMBC, 31P) and the solid state, and supplemented computationally by DFT studies. Interestingly, these iodine(I) pnictogenates demonstrate a range of stabilities, and have been found to excel as iodination reagents in comparison to carbonyl hypoiodites, with comparable reactivity to the eponymous Barluenga’s reagent in the iodination of antipyrine.

The following ALERTS were generated.Each ALERT has the format test-name_ALERT_alert-type_alert-level.Click on the hyperlinks for more details of the test.

Alert level C
PLAT230_ALERT_2_C Hirshfeld Test Diff for I1 --O11 .6.8 s.u.The following ALERTS were generated.Each ALERT has the format test-name_ALERT_alert-type_alert-level.Click on the hyperlinks for more details of the test.The following ALERTS were generated.Each ALERT has the format test-name_ALERT_alert-type_alert-level.Click on the hyperlinks for more details of the test.It is advisable to attempt to resolve as many as possible of the alerts in all categories.Often the minor alerts point to easily fixed oversights, errors and omissions in your CIF or refinement strategy, so attention to these fine details can be worthwhile.In order to resolve some of the more serious problems it may be necessary to carry out additional measurements or structure refinements.However, the purpose of your study may justify the reported deviations and the more serious of these should normally be commented upon in the discussion or experimental section of a paper or in the "special_details" fields of the CIF.checkCIF was carefully designed to identify outliers and unusual parameters, but every test has its limitations and alerts that are not important in a particular case may appear.Conversely, the absence of alerts does not guarantee there are no aspects of the results needing attention.It is up to the individual to critically assess their own results and, if necessary, seek expert advice.

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PLATON version of
u. on c -Axis Small or Missing .............. 0.00010 Ang.0 ALERT level A = Most likely a serious problem -resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 2 ALERT level C = Check.Ensure it is not caused by an omission or oversight 2 ALERT level G = General information/check it is not something unexpected 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 3 ALERT type 2 Indicator that the structure model may be wrong or deficient 0 ALERT type 3 Indicator that the structure quality may be low 1 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check Datablock: 1g A = Most likely a serious problem -resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 1 ALERT level C = Check.Ensure it is not caused by an omission or oversight 1 ALERT level G = General information/check it is not something unexpected 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 2 ALERT type 2 Indicator that the structure model may be wrong or deficient 0 ALERT type 3 Indicator that the structure quality may be low 0 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check 06/01/2024; check.deffile version of 05/01/2024 Click on the hyperlinks for more details of the test.