{"query": "Chirality", "count": 20, "results": [{"id": "card_theory_organic_chemistry", "title": "Organic chemistry & functional groups (why life is built on carbon)", "shelf": "theories", "surface": "secular", "snippet": "Organic chemistry & functional groups (why life is built on carbon) — an engine domain that can touch it: chemistry. Calibration: seals — formulae, molar masses and isomer counts compute. Carbon forms", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (docs/THEORY_CATALOG.md)", "readable": false, "generated": false}, {"id": "card_theory_molecular_symmetry_point_groups", "title": "Molecular symmetry & point groups", "shelf": "theories", "surface": "secular", "snippet": "Molecular symmetry & point groups — an engine domain that can touch it: molecular_geometry. Calibration: seals — a deterministic verifier can CONFIRM or BREAK checkable claims drawn from it, and seal ", "authority_tier": "reference", "source": "The Theory Assay — calibrated, not judged (lone-domain seeding)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_5_12_chirality_in_nature_and_chiral_envi_78cbdb19", "title": "5.12 Chirality in Nature and Chiral Environments — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "5.12\n\nChirality in Nature and Chiral Environments\n\n5.12 • Chirality in Nature and Chiral Environments\n\nAlthough the different enantiomers of a chiral molecule have the same physical properties, they u", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_5_10_chirality_at_nitrogen_phosphorus_an_0ace7436", "title": "5.10 Chirality at Nitrogen, Phosphorus, and Sulfur — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "5.10\n\nChirality at Nitrogen, Phosphorus, and Sulfur\n\n5.10 • Chirality at Nitrogen, Phosphorus, and Sulfur\n\nAs noted previously, the most common cause of chirality in a molecule is the presence of four", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_5_6_diastereomers_71706e02", "title": "5.6 Diastereomers — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "5.6\n\nDiastereomers\n\n5.6 • Diastereomers\n\nMolecules like lactic acid, alanine, and glyceraldehyde are relatively simple because each has only one chirality center and thus only two stereoisomers. The s", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_5_2_the_reason_for_handedness_in_molecul_9c7ff62c", "title": "5.2 The Reason for Handedness in Molecules: Chirality — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "5.2\n\nThe Reason for Handedness in Molecules: Chirality\n\n5.2 • The Reason for Handedness in Molecules: Chirality\n\nA molecule that is not identical to its mirror image is said to be chiral (ky-ral, from", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_chapter_5_ac10d7c1", "title": "Chapter 5 — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "Chapter 5\n\nProblem\n5-1\n\nChiral: screw, shoe\n\nProblem\n5-2\n\n(a)\n\n(b)\n\n(c)\n\nProblem\n5-3\n\nProblem\n5-4\n\n(a)\n\n(b)\n\nProblem\n5-5\n\nLevorotatory\n\nProblem\n5-6\n\n+16.1°\n\nProblem\n5-7\n\n(a)\n\n−Br\n\n(b)\n\n−Br\n\n(c)\n\n−CH2C", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_additional_problems_3d407ff1", "title": "Additional Problems — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "Additional Problems\n\n5 • Additional Problems\n\n5 • Additional Problems\n\nVisualizing Chemistry\n\nProblem\n5-26\n\nWhich of the following structures are identical? (Green = Cl.)\n\n(a)\n(b)\n(c)\n\n(d)\n\nProblem\n5-", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_why_this_chapter_61735a5f", "title": "Why This Chapter? — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "Figure\n5.1\n\nLike the mountain whose image is reflected in a lake, many organic molecules also have mirror-image counterparts. (credit: modification of work “Crystal Lake sunrise reflection” by Sandy H", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_25_4_configurations_of_the_aldoses_be9d1de8", "title": "25.4 Configurations of the Aldoses — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "25.4\n\nConfigurations of the Aldoses\n\n25.4 • Configurations of the Aldoses\n\nAn aldotetrose is a four-carbon sugar with two chirality centers. Thus, there are 22 = 4 possible stereoisomeric aldotetroses", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_5_7_meso_compounds_b5091cc8", "title": "5.7 Meso Compounds — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "5.7\n\nMeso Compounds\n\n5.7 • Meso Compounds\n\nLet’s look at another example (Section 5.4) of a compound with more than one chirality center: the tartaric acid used by Pasteur. The four stereoisomers can ", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_chirality_autocatalysis", "title": "Chirality & asymmetric autocatalysis — one handedness, amplified", "shelf": "codex", "surface": "secular", "snippet": "Many molecules are chiral — they come in two mirror-image forms, R and S. Enantiomeric excess, ee = |R−S|/(R+S)×100%, measures how far a sample leans to one hand (0% = racemic 50/50; 100% = a single e", "authority_tier": "reference", "source": "Nobel Prize in Chemistry 2026 — Kagan & Soai", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_8_13_reaction_stereochemistry_addition_o_ea581398", "title": "8.13 Reaction Stereochemistry: Addition of H 2 O to a Chiral Alkene — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "8.13\n\nReaction Stereochemistry: Addition of H2O to a Chiral Alkene\n\n8.13 • Reaction Stereochemistry: Addition of H2O to a Chiral Alkene\n\nThe reaction discussed in the previous section involves an addi", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_5_5_sequence_rules_for_specifying_config_c713c5ab", "title": "5.5 Sequence Rules for Specifying Configuration — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "5.5\n\nSequence Rules for Specifying Configuration\n\n5.5 • Sequence Rules for Specifying Configuration\n\nStructural drawings provide a visual representation of stereochemistry, but a written method for in", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_spine_chirality_autocatalysis", "title": "Chirality & autocatalysis — a spine", "shelf": "spine", "surface": "secular", "snippet": "The one-handedness of matter and its amplification (Kagan–Soai, Nobel 2026).", "authority_tier": "reference", "source": "Nobel Prize in Chemistry 2026 — Kagan & Soai", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_25_2_representing_carbohydrate_stereoche_296d61b5", "title": "25.2 Representing Carbohydrate Stereochemistry: Fischer Projections — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "25.2\n\nRepresenting Carbohydrate Stereochemistry: Fischer Projections\n\n25.2 • Representing Carbohydrate Stereochemistry: Fischer Projections\n\nBecause most carbohydrates have numerous chirality centers,", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_summary_a17e8a05", "title": "Summary — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "Summary\n\n25 • Summary\n\n25 • Summary\n\nNow that we’ve now seen all the common functional groups and reaction types, our focus has changed to looking at the major classes of biological molecules. Carbohy", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_summary_857aaac1", "title": "Summary — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "Summary\n\n5 • Summary\n\n5 • Summary\n\nIn this chapter, we’ve looked at some of the causes and consequences of molecular handedness—a topic of particular importance in understanding biological chemistry. ", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_key_terms_6b7e73a0", "title": "Key Terms — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "Key Terms\n\n5 • Key Terms\n\n5 • Key Terms\n\nabsolute configuration\n\nachiral\n\nCahn–Ingold–Prelog rules\n\nchiral\n\nchiral environment\n\nchirality center\n\nconfiguration\n\ndextrorotatory\n\ndiastereomer\n\nenantiome", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}, {"id": "card_src_openstax_organic_chemistry_chapter_31_b9f37183", "title": "Chapter 31 — Organic Chemistry", "shelf": "chemistry", "surface": "secular", "snippet": "Chapter 31\n\nProblem\n31-1\n\nH2CCHCO2CH3 < H2CCHCl < H2CCHCH3 < H2CCH–C6H5\n\nProblem\n31-2\n\nH2CCHCH3 < H2CCHC6H5 < H2CCHCN\n\nProblem\n31-3\n\nThe intermediate is a resonance-stabilized benzylic carbanion,\n\nPro", "authority_tier": "reference", "source": "OpenStax: Organic Chemistry (CC-BY 4.0)", "readable": false, "generated": false}], "house": {"door": "FIND", "kind": "cards", "trail": "results", "seal": null, "next_step": {"do": "open the top card", "door": "FIND", "tool": "card_get", "params": {"id": "card_theory_organic_chemistry"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}